[v9.3.x] Fix branch filter for release workflows (#60124)

Fix branch filter for release workflows (#59963)

Ensures the workflow is run on every push to all version branches.

This was thought to be working because it was tested with a manual
dispatch, however, that trigger does not consider filters and was not
an accurate test.

Signed-off-by: Jack Baldry <jack.baldry@grafana.com>

Signed-off-by: Jack Baldry <jack.baldry@grafana.com>
(cherry picked from commit 6f9ee7acf9)

Co-authored-by: Jack Baldry <jack.baldry@grafana.com>

.github/workflows/publish-technical-documentation-release.yml

@@ -3,7 +3,7 @@ name: "publish-technical-documentation-release"
 on:
   push:
     branches:
-      - v[0-9]+.[0-9]+.[0-9]+
+      - v[0-9]+.[0-9]+.x
     tags:
       - v[0-9]+.[0-9]+.[0-9]+
     paths: