Bump codecov/codecov-action from 3 to 4

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from 3 to 4.
- [Release notes](https://github.com/codecov/codecov-action/releases)
- [Changelog](https://github.com/codecov/codecov-action/blob/main/CHANGELOG.md)
- [Commits](codecov/codecov-action@v3...v4)

---
updated-dependencies:
- dependency-name: codecov/codecov-action
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/pinot_tests.yml

@@ -139,7 +139,7 @@ jobs:
             --add-exports=jdk.compiler/com.sun.tools.javac.util=ALL-UNNAMED
         run: .github/workflows/scripts/pr-tests/.pinot_tests_unit.sh
       - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v4
         continue-on-error: true
         timeout-minutes: 5
         with:
@@ -217,7 +217,7 @@ jobs:
             --add-exports=jdk.compiler/com.sun.tools.javac.util=ALL-UNNAMED
         run: .github/workflows/scripts/pr-tests/.pinot_tests_integration.sh
       - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v4
         continue-on-error: true
         timeout-minutes: 5
         with:
@@ -243,7 +243,7 @@ jobs:
         run: .github/workflows/scripts/pr-tests/.pinot_tests_custom_integration.sh
       - name: Upload coverage to Codecov
         if : ${{ matrix.testset == 1 }}
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v4
         continue-on-error: true
         timeout-minutes: 5
         with: