Use preferred package header for generated code (#61059)

* Use preferred package header for generated code

> To convey to humans and machine tools that code is generated, generated source should have a line that matches the following regular expression (in Go syntax):
> `^// Code generated .* DO NOT EDIT\.$`

https://pkg.go.dev/cmd/go#hdr-Generate_Go_files_by_processing_source

Co-authored-by: sam boyer <sdboyer@grafana.com>
Signed-off-by: Jack Baldry <jack.baldry@grafana.com>

* Regenerate files with updated header

Signed-off-by: Jack Baldry <jack.baldry@grafana.com>

Signed-off-by: Jack Baldry <jack.baldry@grafana.com>
Co-authored-by: sam boyer <sdboyer@grafana.com>

packages/grafana-schema/src/index.gen.ts

@@ -1,4 +1,4 @@
-// THIS FILE IS GENERATED. EDITING IS FUTILE.
+// Code generated - EDITING IS FUTILE. DO NOT EDIT.
 //
 // Generated by:
 //     kinds/gen.go

packages/grafana-schema/src/raw/dashboard/x/dashboard_types.gen.ts

@@ -1,4 +1,4 @@
-// THIS FILE IS GENERATED. EDITING IS FUTILE.
+// Code generated - EDITING IS FUTILE. DO NOT EDIT.
 //
 // Generated by:
 //     kinds/gen.go

packages/grafana-schema/src/raw/playlist/x/playlist_types.gen.ts

@@ -1,4 +1,4 @@
-// THIS FILE IS GENERATED. EDITING IS FUTILE.
+// Code generated - EDITING IS FUTILE. DO NOT EDIT.
 //
 // Generated by:
 //     kinds/gen.go

packages/grafana-schema/src/raw/team/x/team_types.gen.ts

@@ -1,4 +1,4 @@
-// THIS FILE IS GENERATED. EDITING IS FUTILE.
+// Code generated - EDITING IS FUTILE. DO NOT EDIT.
 //
 // Generated by:
 //     kinds/gen.go

pkg/codegen/tmpl/gen_header.tmpl

@@ -1,4 +1,4 @@
-// THIS FILE IS GENERATED. EDITING IS FUTILE.
+// Code generated - EDITING IS FUTILE. DO NOT EDIT.
 //
 // Generated by:
 //     {{ .MainGenerator }}

pkg/kinds/dashboard/dashboard_kind_gen.go

@@ -1,4 +1,4 @@
-// THIS FILE IS GENERATED. EDITING IS FUTILE.
+// Code generated - EDITING IS FUTILE. DO NOT EDIT.
 //
 // Generated by:
 //     kinds/gen.go

pkg/kinds/dashboard/dashboard_types_gen.go

@@ -1,4 +1,4 @@
-// THIS FILE IS GENERATED. EDITING IS FUTILE.
+// Code generated - EDITING IS FUTILE. DO NOT EDIT.
 //
 // Generated by:
 //     kinds/gen.go

pkg/kinds/playlist/playlist_kind_gen.go

@@ -1,4 +1,4 @@
-// THIS FILE IS GENERATED. EDITING IS FUTILE.
+// Code generated - EDITING IS FUTILE. DO NOT EDIT.
 //
 // Generated by:
 //     kinds/gen.go

pkg/kinds/playlist/playlist_types_gen.go

@@ -1,4 +1,4 @@
-// THIS FILE IS GENERATED. EDITING IS FUTILE.
+// Code generated - EDITING IS FUTILE. DO NOT EDIT.
 //
 // Generated by:
 //     kinds/gen.go

pkg/kinds/team/team_kind_gen.go

@@ -1,4 +1,4 @@
-// THIS FILE IS GENERATED. EDITING IS FUTILE.
+// Code generated - EDITING IS FUTILE. DO NOT EDIT.
 //
 // Generated by:
 //     kinds/gen.go

pkg/kinds/team/team_types_gen.go

@@ -1,4 +1,4 @@
-// THIS FILE IS GENERATED. EDITING IS FUTILE.
+// Code generated - EDITING IS FUTILE. DO NOT EDIT.
 //
 // Generated by:
 //     kinds/gen.go

pkg/plugins/pfs/corelist/corelist_load_gen.go

@@ -1,4 +1,4 @@
-// THIS FILE IS GENERATED. EDITING IS FUTILE.
+// Code generated - EDITING IS FUTILE. DO NOT EDIT.
 //
 // Generated by:
 //     public/app/plugins/gen.go

pkg/plugins/plugindef/plugindef_bindings_gen.go

@@ -1,4 +1,4 @@
-// THIS FILE IS GENERATED. EDITING IS FUTILE.
+// Code generated - EDITING IS FUTILE. DO NOT EDIT.
 //
 // Generated by:
 //     pkg/plugins/plugindef/gen.go

pkg/plugins/plugindef/plugindef_types_gen.go

@@ -1,4 +1,4 @@
-// THIS FILE IS GENERATED. EDITING IS FUTILE.
+// Code generated - EDITING IS FUTILE. DO NOT EDIT.
 //
 // Generated by:
 //     pkg/plugins/plugindef/gen.go

pkg/registry/corekind/base_gen.go

@@ -1,4 +1,4 @@
-// THIS FILE IS GENERATED. EDITING IS FUTILE.
+// Code generated - EDITING IS FUTILE. DO NOT EDIT.
 //
 // Generated by:
 //     kinds/gen.go

public/app/plugins/panel/annolist/models.gen.ts

@@ -1,4 +1,4 @@
-// THIS FILE IS GENERATED. EDITING IS FUTILE.
+// Code generated - EDITING IS FUTILE. DO NOT EDIT.
 //
 // Generated by:
 //     public/app/plugins/gen.go

public/app/plugins/panel/barchart/models.gen.ts

@@ -1,4 +1,4 @@
-// THIS FILE IS GENERATED. EDITING IS FUTILE.
+// Code generated - EDITING IS FUTILE. DO NOT EDIT.
 //
 // Generated by:
 //     public/app/plugins/gen.go

public/app/plugins/panel/bargauge/models.gen.ts

@@ -1,4 +1,4 @@
-// THIS FILE IS GENERATED. EDITING IS FUTILE.
+// Code generated - EDITING IS FUTILE. DO NOT EDIT.
 //
 // Generated by:
 //     public/app/plugins/gen.go

public/app/plugins/panel/dashlist/models.gen.ts

@@ -1,4 +1,4 @@
-// THIS FILE IS GENERATED. EDITING IS FUTILE.
+// Code generated - EDITING IS FUTILE. DO NOT EDIT.
 //
 // Generated by:
 //     public/app/plugins/gen.go

public/app/plugins/panel/gauge/models.gen.ts

@@ -1,4 +1,4 @@
-// THIS FILE IS GENERATED. EDITING IS FUTILE.
+// Code generated - EDITING IS FUTILE. DO NOT EDIT.
 //
 // Generated by:
 //     public/app/plugins/gen.go

public/app/plugins/panel/histogram/models.gen.ts

@@ -1,4 +1,4 @@
-// THIS FILE IS GENERATED. EDITING IS FUTILE.
+// Code generated - EDITING IS FUTILE. DO NOT EDIT.
 //
 // Generated by:
 //     public/app/plugins/gen.go

public/app/plugins/panel/news/models.gen.ts

@@ -1,4 +1,4 @@
-// THIS FILE IS GENERATED. EDITING IS FUTILE.
+// Code generated - EDITING IS FUTILE. DO NOT EDIT.
 //
 // Generated by:
 //     public/app/plugins/gen.go

public/app/plugins/panel/piechart/models.gen.ts

@@ -1,4 +1,4 @@
-// THIS FILE IS GENERATED. EDITING IS FUTILE.
+// Code generated - EDITING IS FUTILE. DO NOT EDIT.
 //
 // Generated by:
 //     public/app/plugins/gen.go

public/app/plugins/panel/stat/models.gen.ts

@@ -1,4 +1,4 @@
-// THIS FILE IS GENERATED. EDITING IS FUTILE.
+// Code generated - EDITING IS FUTILE. DO NOT EDIT.
 //
 // Generated by:
 //     public/app/plugins/gen.go

public/app/plugins/panel/text/models.gen.ts

@@ -1,4 +1,4 @@
-// THIS FILE IS GENERATED. EDITING IS FUTILE.
+// Code generated - EDITING IS FUTILE. DO NOT EDIT.
 //
 // Generated by:
 //     public/app/plugins/gen.go