Bump codecov/codecov-action from 6 to 7 (#539)

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from 6 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@v6...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] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

release MMapper 26.06.0

release MMapper 26.04.2

release MMapper 26.04.1

release MMapper 26.04.0

release MMapper 25.07.0

release MMapper 25.06.2

release MMapper 25.06.1

release MMapper 25.06.0

fix flatpak for images download