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](https://github.com/codecov/codecov-action/compare/v3...v4)

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

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

.github/workflows/pythonpackage-windows.yml

@@ -44,7 +44,7 @@ jobs:
       env:
         ESCPOS_CAPABILITIES_FILE: D:\a\python-escpos\python-escpos\capabilities-data\dist\capabilities.json
     - name: Upload coverage to Codecov
-      uses: codecov/codecov-action@v3
+      uses: codecov/codecov-action@v4
       with:
         directory: ./coverage/reports/
         env_vars: OS,PYTHON

.github/workflows/pythonpackage.yml

@@ -54,7 +54,7 @@ jobs:
       env:
         ESCPOS_CAPABILITIES_FILE: /home/runner/work/python-escpos/python-escpos/capabilities-data/dist/capabilities.json
     - name: Upload coverage to Codecov
-      uses: codecov/codecov-action@v3
+      uses: codecov/codecov-action@v4
       with:
         directory: ./coverage/reports/
         env_vars: OS,PYTHON