Bump @actions/core from 1.4.0 to 1.9.1 (#42)

Bumps [@actions/core](https://github.com/actions/toolkit/tree/HEAD/packages/core) from 1.4.0 to 1.9.1.
- [Release notes](https://github.com/actions/toolkit/releases)
- [Changelog](https://github.com/actions/toolkit/blob/main/packages/core/RELEASES.md)
- [Commits](https://github.com/actions/toolkit/commits/HEAD/packages/core)

---
updated-dependencies:
- dependency-name: "@actions/core"
  dependency-type: direct:production
...

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Author: dependabot[bot]

package-lock.json

@@ -18,7 +18,7 @@
         "lib/"
     ],
     "dependencies": {
-        "@actions/core": "^1.4.0",
+        "@actions/core": "^1.9.1",
         "@actions/exec": "^1.1.0",
         "@actions/tool-cache": "^1.7.1"
     },