Merge pull request #305 from yanamura/dependabot/npm_and_yarn/actions/core-1.9.0

Upgrade: bump @actions/core from 1.6.0 to 1.9.0

Author: yanamura

package-lock.json

@@ -10,7 +10,7 @@
         "all": "npm run build && npm run format && npm run lint && npm run pack"
     },
     "dependencies": {
-        "@actions/core": "^1.6.0",
+        "@actions/core": "^1.9.0",
         "@actions/exec": "^1.1.1"
     },
     "devDependencies": {