Bump cortex-m-rtic in /rtic_v1/stm32f4_independent_watchdog

Bumps [cortex-m-rtic](https://github.com/rtic-rs/cortex-m-rtic) from 1.1.3 to 1.1.4.
- [Release notes](https://github.com/rtic-rs/cortex-m-rtic/releases)
- [Changelog](https://github.com/rtic-rs/cortex-m-rtic/blob/master/CHANGELOG.md)
- [Commits](rtic-rs/rtic@v1.1.3...v1.1.4)

---
updated-dependencies:
- dependency-name: cortex-m-rtic
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]