Upgrade @actions dependencies to Node 24 compatible versions

Upgrades the following @actions packages:
- @actions/cache: ^4.0.3 → ^5.0.1
- @actions/core: ^1.10.0 → ^2.0.1
- @actions/exec: ^1.1.0 → ^2.0.0
- @actions/http-client: ^2.2.3 → ^3.0.0
- @actions/io: ^1.0.2 → ^2.0.0

License updates:
- Add blueoak-1.0.0 to allowed licenses (new transitive dependency: sax)
- Add @actions/http-client to reviewed licenses (MIT licensed but detected as 'other')

Also ran npm audit fix to resolve vulnerabilities.

.licensed.yml

@@ -10,6 +10,8 @@ allowed:
   - cc0-1.0
   - unlicense
   - 0bsd
+  - blueoak-1.0.0
 
 reviewed:
-  npm:
+  npm:
+    - "@actions/http-client"

package.json

@@ -28,12 +28,12 @@
   "author": "GitHub",
   "license": "MIT",
   "dependencies": {
-    "@actions/cache": "^4.0.3",
-    "@actions/core": "^1.10.0",
-    "@actions/exec": "^1.1.0",
+    "@actions/cache": "^5.0.1",
+    "@actions/core": "^2.0.1",
+    "@actions/exec": "^2.0.0",
     "@actions/glob": "^0.5.0",
-    "@actions/http-client": "^2.2.3",
-    "@actions/io": "^1.0.2",
+    "@actions/http-client": "^3.0.0",
+    "@actions/io": "^2.0.0",
     "@actions/tool-cache": "^2.0.2",
     "@iarna/toml": "^3.0.0",
     "semver": "^7.7.1"