fix(helm): Add release namespace metadata to HorizontalPodAutoscaling that lack it (#18453)

Signed-off-by: Rhea Danzey <rdanzey@element.io>
Co-authored-by: J Stickler <julie.stickler@grafana.com>

production/helm/loki/templates/backend/hpa.yaml

@@ -9,6 +9,7 @@ apiVersion: autoscaling/v2beta1
 kind: HorizontalPodAutoscaler
 metadata:
   name: {{ include "loki.backendFullname" . }}
+  namespace: {{ $.Release.Namespace }}
   labels:
     {{- include "loki.backendLabels" . | nindent 4 }}
 spec:

production/helm/loki/templates/distributor/hpa.yaml

@@ -5,6 +5,7 @@ apiVersion: {{ $apiVersion }}
 kind: HorizontalPodAutoscaler
 metadata:
   name: {{ include "loki.distributorFullname" . }}
+  namespace: {{ $.Release.Namespace }}
   labels:
     {{- include "loki.distributorLabels" . | nindent 4 }}
 spec:

production/helm/loki/templates/read/hpa.yaml

@@ -9,6 +9,7 @@ apiVersion: autoscaling/v2beta1
 kind: HorizontalPodAutoscaler
 metadata:
   name: {{ include "loki.readFullname" . }}
+  namespace: {{ $.Release.Namespace }}
   labels:
     {{- include "loki.readLabels" . | nindent 4 }}
 spec:

production/helm/loki/templates/single-binary/hpa.yaml

@@ -10,6 +10,7 @@ apiVersion: autoscaling/v2beta1
 kind: HorizontalPodAutoscaler
 metadata:
   name: {{ include "loki.singleBinaryFullname" . }}
+  namespace: {{ $.Release.Namespace }}
   labels:
     {{- include "loki.singleBinaryLabels" . | nindent 4 }}
 spec: