Bump watchdog from 0.9.0 to 3.0.0 in /integration

Bumps [watchdog](https://github.com/gorakhargosh/watchdog) from 0.9.0 to 3.0.0.
- [Release notes](https://github.com/gorakhargosh/watchdog/releases)
- [Changelog](https://github.com/gorakhargosh/watchdog/blob/master/changelog.rst)
- [Commits](gorakhargosh/watchdog@v0.9.0...v3.0.0)

---
updated-dependencies:
- dependency-name: watchdog
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

integration/airflow/dev-requirements.txt

@@ -1,7 +1,7 @@
 pip==22.3.1
 bump2version==0.5.11
 wheel==0.33.6
-watchdog==0.9.0
+watchdog==3.0.0
 flake8==6.0.0
 tox==4.2.6
 coverage==7.2.3