Bump @actions/core from 1.2.3 to 1.2.4 (#93)

Bumps [@actions/core](https://github.com/actions/toolkit/tree/HEAD/packages/core) from 1.2.3 to 1.2.4.
- [Release notes](https://github.com/actions/toolkit/releases)
- [Changelog](https://github.com/actions/toolkit/blob/master/packages/core/RELEASES.md)
- [Commits](https://github.com/actions/toolkit/commits/HEAD/packages/core)

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package.json

@@ -23,7 +23,7 @@
   "author": "CrazyMax",
   "license": "MIT",
   "dependencies": {
-    "@actions/core": "^1.2.3",
+    "@actions/core": "^1.2.4",
     "@actions/exec": "^1.0.4",
     "@actions/tool-cache": "^1.3.4",
     "download": "^8.0.0",