Update dependency @angular-eslint/eslint-plugin to v15

frontend/package.json

@@ -14,9 +14,9 @@
   "dependencies": {
     "@angular/animations": "~15.0.0",
     "@angular/cdk": "^15.0.0",
-    "@angular/common": "~15.0.0",
+    "@angular/common": "~14.2.0",
     "@angular/compiler": "~15.0.0",
-    "@angular/core": "~15.0.0",
+    "@angular/core": "~14.2.0",
     "@angular/forms": "~15.0.0",
     "@angular/material": "^15.0.0",
     "@angular/platform-browser": "~15.0.0",
@@ -24,7 +24,7 @@
     "@angular/router": "~15.0.0",
     "bootstrap": "^5.1.3",
     "ngx-cron-editor": "^0.7.3",
-    "rxjs": "~7.8.0",
+    "rxjs": "~7.6.0",
     "tslib": "^2.4.0",
     "zone.js": "~0.12.0"
   },
@@ -35,12 +35,12 @@
     "@angular-eslint/eslint-plugin-template": "15.1.0",
     "@angular-eslint/schematics": "15.1.0",
     "@angular-eslint/template-parser": "15.1.0",
-    "@angular/cli": "~15.0.0",
+    "@angular/cli": "~14.2.0",
     "@angular/compiler-cli": "~15.0.0",
     "@types/jasmine": "~4.3.0",
     "@types/node": "^18.0.0",
-    "@typescript-eslint/eslint-plugin": "5.46.1",
-    "@typescript-eslint/parser": "5.46.1",
+    "@typescript-eslint/eslint-plugin": "5.39.0",
+    "@typescript-eslint/parser": "5.46.0",
     "eslint": "^8.15.0",
     "jasmine-core": "~4.5.0",
     "karma": "~6.4.0",