ci: use node 16 in github action pipelines

angular.json

@@ -12,6 +12,7 @@
           "builder": "@angular-builders/custom-webpack:browser",
           "options": {
             "outputPath": "dist",
+            "deleteOutputPath": false,
             "index": "src/index.html",
             "main": "src/main.ts",
             "tsConfig": "src/tsconfig.app.json",
@@ -32,7 +33,6 @@
               "optimization": false,
               "outputHashing": "all",
               "sourceMap": true,
-              "extractCss": true,
               "namedChunks": false,
               "aot": false,
               "extractLicenses": true,
@@ -49,7 +49,6 @@
               "optimization": true,
               "outputHashing": "all",
               "sourceMap": false,
-              "extractCss": true,
               "namedChunks": false,
               "aot": true,
               "extractLicenses": true,