test: update all integration tests to use pnpm instead of yarn (#3127)

Remove `yarn` and replace it with pnpm

PR Close #3127

Author: alan-agius4

.bazelignore

@@ -3,10 +3,10 @@ dist
 
 bazel/integration/tests/angular-cli/.angular/
 bazel/integration/tests/angular-cli/node_modules/
-bazel/integration/tests/nested_bazel_workspaces/node_modules
+bazel/integration/tests/nested_bazel_workspaces/basic/node_modules
 bazel/integration/tests/package_mappings/node_modules/
 bazel/integration/tests/playwright_chromium/node_modules
 
 bazel/node_modules
 bazel/spec-bundling/test/node_modules
-.github/ng-renovate/node_modules
+.github/ng-renovate/node_modules