chore(deps): bump @actions/core from 1.2.3 to 1.2.6 (#55)

Bumps [@actions/core](https://github.com/actions/toolkit/tree/HEAD/packages/core) from 1.2.3 to 1.2.6.
- [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)

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

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

Author: dependabot[bot]

package-lock.json

@@ -12,7 +12,7 @@
   "author": "aws-crypto-tools-team@amazon.com",
   "license": "Apache-2.0",
   "dependencies": {
-    "@actions/core": "^1.2.3",
+    "@actions/core": "^1.2.6",
     "@actions/exec": "^1.0.3",
     "@actions/github": "^2.1.1",
     "aws-sdk": "^2.654.0",