Bump codecov/codecov-action from 5 to 7

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from 5 to 7.
- [Release notes](https://github.com/codecov/codecov-action/releases)
- [Changelog](https://github.com/codecov/codecov-action/blob/main/CHANGELOG.md)
- [Commits](codecov/codecov-action@v5...v7)

---
updated-dependencies:
- dependency-name: codecov/codecov-action
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/tests.yml

@@ -118,7 +118,7 @@ jobs:
                 command: cd(fullfile(getenv('GITHUB_WORKSPACE'), '.github', 'workflows')); run tests_matlab;
 
         -   name: Code coverage matlab
-            uses: codecov/codecov-action@v5
+            uses: codecov/codecov-action@v7
             with:
                 file: coverage.xml
                 flags: ${{ matrix.os }}_matlab-${{ matrix.matlab }}_fast
@@ -213,7 +213,7 @@ jobs:
                 command: cd(fullfile(getenv('GITHUB_WORKSPACE'), '.github', 'workflows')); global SLOW; SLOW=true; run tests_matlab;
 
         -   name: Code coverage matlab
-            uses: codecov/codecov-action@v5
+            uses: codecov/codecov-action@v7
             with:
                 file: coverage.xml
                 flags: ${{ matrix.os }}_matlab-${{ matrix.matlab }}_slow

.github/workflows/tests_octave.yml

@@ -159,7 +159,7 @@ jobs:
 
         -   name: Code coverage
             if: matrix.test_type == 'unit'
-            uses: codecov/codecov-action@v5
+            uses: codecov/codecov-action@v7
             with:
                 file: coverage.xml
                 flags: octave

.github/workflows/tests_windows.yml

@@ -125,7 +125,7 @@ jobs:
 
         -   name: Code coverage matlab
             if: matrix.test_type == 'unit'
-            uses: codecov/codecov-action@v5
+            uses: codecov/codecov-action@v7
             with:
                 file: coverage.xml
                 flags: ${{ matrix.os }}_matlab-${{ matrix.matlab }}_${{ matrix.mode }}