build(deps): bump apprise from 1.9.0 to 1.9.1 in /requirements

Bumps [apprise](https://github.com/caronc/apprise) from 1.9.0 to 1.9.1.
- [Release notes](https://github.com/caronc/apprise/releases)
- [Commits](caronc/apprise@1.9.0...v1.9.1)

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

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

requirements/requirements-saltbox.txt

@@ -1,6 +1,6 @@
 ansible==11.1.0
 ansible-lint==24.12.2
-apprise==1.9.0
+apprise==1.9.1
 argon2_cffi==23.1.0
 certbot==3.0.1
 dnspython==2.7.0