Bump @actions/core from 1.6.0 to 1.9.1 (#133)

* Bump @actions/core from 1.6.0 to 1.9.1

Bumps [@actions/core](https://github.com/actions/toolkit/tree/HEAD/packages/core) from 1.6.0 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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* Update what dependabot didn't

Signed-off-by: dependabot[bot] <support@github.com>
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Co-authored-by: Paulo F. Oliveira <paulo.ferraz.oliveira@gmail.com>

package.json

@@ -19,7 +19,7 @@
     }
   },
   "dependencies": {
-    "@actions/core": "1.6.0",
+    "@actions/core": "1.9.1",
     "@actions/exec": "1.1.1",
     "semver": "7.3.6"
   },