Add tests for installer action.

Author: kpk47

.github/workflows/e2e.installer-action.yml

@@ -0,0 +1,18 @@
+on:
+  schedule:
+    - cron: "0 5 * * *"
+  workflow_dispatch:
+
+permissions: read-all
+
+jobs:
+  test-tags:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: slsa-framework/slsa-verifier/actions/[email protected]
+      - uses: slsa-framework/slsa-verifier/actions/[email protected]
+  test-hashes:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: slsa-framework/slsa-verifier/actions/installer@936dc46aca3ed973d542a09d2a9d890705ce5011
+      - uses: slsa-framework/slsa-verifier/actions/installer@e6428d7da594455a4c2b7f24907fec421a5e0e95