build: fix yarn merge script alias since it wasn't using ts-node (#25126)

The `yarn merge` script directly calls into `ng-dev` but should instead
go through the `ng-dev` yarn script alias we have (the one that wires
up TSNode for the config loading).

Author: devversion

package.json

@@ -30,15 +30,15 @@
     "breaking-changes": "ts-node --project scripts/tsconfig.json scripts/breaking-changes.ts",
     "check-entry-point-setup": "node ./scripts/check-entry-point-setup.js",
     "check-package-externals": "ts-node --project scripts/tsconfig.json scripts/check-package-externals.ts",
-    "format": "yarn ng-dev format changed",
+    "format": "yarn -s ng-dev format changed",
     "cherry-pick-patch": "ts-node --project tools/cherry-pick-patch/tsconfig.json tools/cherry-pick-patch/cherry-pick-patch.ts",
     "ownerslint": "ts-node --project scripts/tsconfig.json scripts/ownerslint.ts",
     "tslint": "tslint -c tslint.json --project ./tsconfig.json",
     "stylelint": "stylelint \"src/**/*.+(css|scss)\" --config .stylelintrc.json",
     "resync-caretaker-app": "ts-node --project scripts/tsconfig.json scripts/caretaking/resync-caretaker-app-prs.ts",
     "ts-circular-deps:check": "yarn -s ng-dev ts-circular-deps check --config ./src/circular-deps-test.conf.js",
     "ts-circular-deps:approve": "yarn -s ng-dev ts-circular-deps approve --config ./src/circular-deps-test.conf.js",
-    "merge": "ng-dev pr merge",
+    "merge": "yarn -s ng-dev pr merge",
     "approve-api": "node ./scripts/approve-api-golden.js",
     "approve-size-tests": "node ./scripts/approve-size-golden.js",
     "integration-tests": "bazel test --test_tag_filters=-linker-integration-test --build_tests_only -- //integration/... -//integration/size-test/...",