Update dependency whatwg-fetch to v3.6.20

package.json

@@ -408,7 +408,7 @@
     "vendor": "link:./public/vendor",
     "visjs-network": "4.25.0",
     "webpack-assets-manifest": "^5.1.0",
-    "whatwg-fetch": "3.6.2",
+    "whatwg-fetch": "3.6.20",
     "xlsx": "https://cdn.sheetjs.com/xlsx-0.19.1/xlsx-0.19.1.tgz"
   },
   "resolutions": {

yarn.lock

@@ -17269,7 +17269,7 @@ __metadata:
     webpack-dev-server: "npm:4.15.1"
     webpack-manifest-plugin: "npm:5.0.0"
     webpack-merge: "npm:5.10.0"
-    whatwg-fetch: "npm:3.6.2"
+    whatwg-fetch: "npm:3.6.20"
     xlsx: "https://cdn.sheetjs.com/xlsx-0.19.1/xlsx-0.19.1.tgz"
     yaml: "npm:^2.0.0"
     yargs: "npm:^17.5.1"
@@ -29991,10 +29991,10 @@ __metadata:
   languageName: node
   linkType: hard
 
-"whatwg-fetch@npm:3.6.2":
-  version: 3.6.2
-  resolution: "whatwg-fetch@npm:3.6.2"
-  checksum: f05ceff9e9098db228fee84b9f9258a434283c0eb3cd8183c8b22e25e32698a2f80ee8a9c1c634d5b1441fe7692a031812d8a1f21079da76892a5119be2ac945
+"whatwg-fetch@npm:3.6.20":
+  version: 3.6.20
+  resolution: "whatwg-fetch@npm:3.6.20"
+  checksum: 2b4ed92acd6a7ad4f626a6cb18b14ec982bbcaf1093e6fe903b131a9c6decd14d7f9c9ca3532663c2759d1bdf01d004c77a0adfb2716a5105465c20755a8c57c
   languageName: node
   linkType: hard