[Copilot] Update loader-utils dependency (#2458)

* Add copilot instructions and skills for build and tests.

* Add dev-server skill.

* Auth Util changes to fix Entra login while running from copilot.

* Fix lint issue.

* Copilot generated update for loader-utils & less-vars-loader dependency.

package-lock.json

@@ -22339,21 +22339,13 @@
       "dependencies": {
         "camelcase": "^3.0.0",
         "less-vars-to-js": "^1.1.2",
-        "loader-utils": "^0.2.16",
+        "loader-utils": "1.4.2",
         "object.entries": "^1.0.3"
       },
       "engines": {
         "node": ">=5"
       }
     },
-    "node_modules/less-vars-loader/node_modules/big.js": {
-      "version": "3.2.0",
-      "dev": true,
-      "license": "MIT",
-      "engines": {
-        "node": "*"
-      }
-    },
     "node_modules/less-vars-loader/node_modules/camelcase": {
       "version": "3.0.0",
       "dev": true,
@@ -22362,37 +22354,6 @@
         "node": ">=0.10.0"
       }
     },
-    "node_modules/less-vars-loader/node_modules/emojis-list": {
-      "version": "2.1.0",
-      "dev": true,
-      "license": "MIT",
-      "engines": {
-        "node": ">= 0.10"
-      }
-    },
-    "node_modules/less-vars-loader/node_modules/json5": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/json5/-/json5-1.0.2.tgz",
-      "integrity": "sha512-g1MWMLBiz8FKi1e4w0UyVL3w+iJceWAFBAaBnnGKOpNa5f8TLktkbre1+s6oICydWAm+HRUGTmI+//xv2hvXYA==",
-      "dev": true,
-      "dependencies": {
-        "minimist": "^1.2.0"
-      },
-      "bin": {
-        "json5": "lib/cli.js"
-      }
-    },
-    "node_modules/less-vars-loader/node_modules/loader-utils": {
-      "version": "0.2.17",
-      "dev": true,
-      "license": "MIT",
-      "dependencies": {
-        "big.js": "^3.1.3",
-        "emojis-list": "^2.0.0",
-        "json5": "^0.5.0",
-        "object-assign": "^4.0.1"
-      }
-    },
     "node_modules/less-vars-to-js": {
       "version": "1.3.0",
       "dev": true,