Bump @actions/cache to 5.1.0, log cache write denied (#746)

* Bump @actions/cache to 5.1.0, log cache write denied

* Add cache save failure test case

* Update dist

* Resolve high-severity audit issues

.licenses/npm/brace-expansion.dep.yml

@@ -1,6 +1,6 @@
 ---
 name: brace-expansion
-version: 1.1.13
+version: 1.1.15
 type: npm
 summary: Brace expansion as known from sh/bash
 homepage: https://github.com/juliangruber/brace-expansion