Bump deprecated from 1.2.14 to 1.2.15 in /images/airflow/2.9.2/etc

Bumps [deprecated](https://github.com/laurent-laporte-pro/deprecated) from 1.2.14 to 1.2.15.
- [Release notes](https://github.com/laurent-laporte-pro/deprecated/releases)
- [Changelog](https://github.com/laurent-laporte-pro/deprecated/blob/master/CHANGELOG.rst)
- [Commits](laurent-laporte-pro/deprecated@v1.2.14...v1.2.15)

---
updated-dependencies:
- dependency-name: deprecated
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

images/airflow/2.9.2/etc/airflow_constraints.txt

@@ -38,7 +38,7 @@
 Authlib==1.3.1
 Babel==2.15.0
 ConfigUpdater==3.2
-Deprecated==1.2.14
+Deprecated==1.2.15
 Events==0.5
 Flask-AppBuilder==4.4.1
 Flask-Babel==2.0.0