fix: enable CI workflows on hotfix branches

- Added hotfix/** to docker-build.yml push/PR triggers
- Added hotfix/** to e2e-tests.yml workflow_run filter
- Added hotfix/** to all integration test workflows (WAF, CrowdSec, Rate Limit, Cerberus)
- Added hotfix/** to propagate-changes.yml triggers
- Now when you push to hotfix/* branches, all CI tests will run

Fixes issue where e2e and integration tests were not running on hotfix branches.

.github/workflows/docker-build.yml

@@ -26,12 +26,14 @@ on:
       - main
       - development
       - 'feature/**'
+      - 'hotfix/**'
     # Note: Tags are handled by release-goreleaser.yml to avoid duplicate builds
   pull_request:
     branches:
       - main
       - development
       - 'feature/**'
+      - 'hotfix/**'
   workflow_dispatch:
   workflow_call: