retry installs on macos (#15641)

.github/workflows/build_test_deploy.yml

@@ -80,7 +80,6 @@ jobs:
   testMacOS:
     name: macOS ( Basic, Production, Acceptance )
     runs-on: macos-latest
-    needs: build
     env:
       NEXT_TELEMETRY_DISABLED: 1
       NEXT_TEST_JOB: 1
@@ -90,7 +89,7 @@ jobs:
       - uses: actions/checkout@v2
       - run: git fetch --depth=1 origin +refs/tags/*:refs/tags/*
       # Installing dependencies again since OS changed
-      - run: yarn install --frozen-lockfile --check-files
+      - run: yarn install --frozen-lockfile --check-files || yarn install --frozen-lockfile --check-files
       - run: node run-tests.js test/integration/production/test/index.test.js
       - run: node run-tests.js test/integration/basic/test/index.test.js
       - run: node run-tests.js test/acceptance/*