ci: add/update workflow for secret scanning on PRs [skip ci]

Author: wetransformer

.github/workflows/tf-scan-for-secrets.yml

@@ -12,6 +12,6 @@ on:
 jobs:
   scan-for-secrets:
     name: Scan for secrets
-    uses: wetransform/gha-workflows/.github/workflows/scan-for-secrets.yml@11ac55c836e622b4a3c944e057f9067cfdc6ab11 # v4.1.1
+    uses: wetransform/gha-workflows/.github/workflows/scan-for-secrets.yml@6cf8743e1cdaff405473951cc6ad4eadaf2226cc # v4.1.2
     secrets:
       SLACK_EXPOSED_SECRETS_WEBHOOK: ${{ secrets.SLACK_EXPOSED_SECRETS_WEBHOOK }}