build(deps): bump codecov/codecov-action from 3 to 4 (#377)

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>

Author: dependabot[bot]

.github/workflows/test.yml

@@ -37,7 +37,7 @@ jobs:
       run: coverage run setup.py test
 
     - name: Upload Coverage to Codecov
-      uses: codecov/codecov-action@v3
+      uses: codecov/codecov-action@v4
 
   postgres:
     runs-on: ubuntu-latest
@@ -83,7 +83,7 @@ jobs:
         DATABASE_URL: postgres://postgres:[email protected]/postgres
 
     - name: Upload Coverage to Codecov
-      uses: codecov/codecov-action@v3
+      uses: codecov/codecov-action@v4
 
   mysql:
     runs-on: ubuntu-latest
@@ -127,7 +127,7 @@ jobs:
         DATABASE_URL: mysql://[email protected]/djangocms_test
 
     - name: Upload Coverage to Codecov
-      uses: codecov/codecov-action@v3
+      uses: codecov/codecov-action@v4
 
   cms-develop-sqlite:
     runs-on: ${{ matrix.os }}
@@ -161,7 +161,7 @@ jobs:
       run: coverage run setup.py test
 
     - name: Upload Coverage to Codecov
-      uses: codecov/codecov-action@v3
+      uses: codecov/codecov-action@v4
 
   sqlite-django-main:
     runs-on: ubuntu-latest
@@ -197,4 +197,4 @@ jobs:
       run: coverage run setup.py test
 
     - name: Upload Coverage to Codecov
-      uses: codecov/codecov-action@v3
+      uses: codecov/codecov-action@v4