[2.1] Update codecov GitHub Action (#6397)

Author: pierlon

.github/workflows/build-test-measure.yml

@@ -248,7 +248,7 @@ jobs:
         run: npm run test:js -- --ci --cacheDirectory="$HOME/.jest-cache" --collectCoverage
 
       - name: Upload code coverage report
-        uses: codecov/codecov-action@v1.4.1
+        uses: codecov/codecov-action@v1.5.2
         with:
           file: build/logs/lcov.info
           flags: javascript
@@ -494,7 +494,7 @@ jobs:
 
       - name: Upload code coverage report
         if: ${{ matrix.coverage == true }}
-        uses: codecov/codecov-action@v1.4.1
+        uses: codecov/codecov-action@v1.5.2
         with:
           file: ${{ env.WP_CORE_DIR }}/src/wp-content/plugins/amp/build/logs/clover.xml
           flags: php,unit
@@ -653,7 +653,7 @@ jobs:
 
       - name: Upload code coverage report
         if: ${{ matrix.coverage == true }}
-        uses: codecov/codecov-action@v1.4.1
+        uses: codecov/codecov-action@v1.5.2
         with:
           files: ${{ env.COVERAGE_FILES }}
           flags: php,feature