github-actions: bump codecov/codecov-action from 3 to 4 (#2182)

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]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/border_router.yml

@@ -184,7 +184,7 @@ jobs:
           third_party/openthread/repo/*.log
     - name: Codecov
       if: ${{ success() && steps.check_cache_result.outputs.cache-hit != 'true' }}
-      uses: codecov/codecov-action@v3
+      uses: codecov/codecov-action@v4
     - name: Cache test result
       if: ${{ success() && steps.check_cache_result.outputs.cache-hit != 'true' }}
       run: |

.github/workflows/build.yml

@@ -73,7 +73,7 @@ jobs:
     - name: Run
       run: script/test build check
     - name: Codecov
-      uses: codecov/codecov-action@v3
+      uses: codecov/codecov-action@v4
 
   rest-check:
     runs-on: ubuntu-20.04
@@ -96,7 +96,7 @@ jobs:
     - name: Run
       run: script/test build check
     - name: Codecov
-      uses: codecov/codecov-action@v3
+      uses: codecov/codecov-action@v4
 
   script-check:
     runs-on: ubuntu-20.04
@@ -112,7 +112,7 @@ jobs:
     - name: Run
       run: tests/scripts/check-scripts
     - name: Codecov
-      uses: codecov/codecov-action@v3
+      uses: codecov/codecov-action@v4
 
   scan-build:
     runs-on: ubuntu-20.04

.github/workflows/meshcop.yml

@@ -80,4 +80,4 @@ jobs:
         OTBR_USE_WEB_COMMISSIONER: 1
       run: OTBR_VERBOSE=${RUNNER_DEBUG:-0} script/test meshcop
     - name: Codecov
-      uses: codecov/codecov-action@v3
+      uses: codecov/codecov-action@v4