ci: run security checks on push to branch (#1482) (#1487)

Recently in PRs, we've been getting warnings that our SAST tools don't have a known configuration for
some branches.  To fix this warning, we need to add push hooks for `master` and the release branches
to run security checks.

Signed-off-by: Andy Sadler <[email protected]>
Co-authored-by: Andy Sadler <[email protected]>

Author: service-binding-operator-bot

.github/workflows/periodic-security-check.yaml

@@ -1,4 +1,8 @@
 on:
+  push:
+    branch:
+      - master
+      - 'release-v**.x'
   schedule:
     - cron: '0 0 * * *'
 
@@ -46,4 +50,4 @@ jobs:
       - name: Upload gosec scan results to GitHub Security tab
         uses: github/codeql-action/upload-sarif@v2
         with:
-          sarif_file: 'gosec.sarif'
+          sarif_file: 'gosec.sarif'