Bump @actions/core from 1.2.7 to 1.4.0

Bumps [@actions/core](https://github.com/actions/toolkit/tree/HEAD/packages/core) from 1.2.7 to 1.4.0.
- [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
  update-type: version-update:semver-minor
...

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

package.json

@@ -22,7 +22,7 @@
   "author": "CrazyMax",
   "license": "MIT",
   "dependencies": {
-    "@actions/core": "^1.2.7",
+    "@actions/core": "^1.4.0",
     "@actions/exec": "^1.0.4",
     "addressparser": "^1.0.1",
     "openpgp": "^4.10.10"

yarn.lock

@@ -2,10 +2,10 @@
 # yarn lockfile v1
 
 
-"@actions/core@^1.2.7":
-  version "1.2.7"
-  resolved "https://registry.yarnpkg.com/@actions/core/-/core-1.2.7.tgz#594f8c45b213f0146e4be7eda8ae5cf4e198e5ab"
-  integrity sha512-kzLFD5BgEvq6ubcxdgPbRKGD2Qrgya/5j+wh4LZzqT915I0V3rED+MvjH6NXghbvk1MXknpNNQ3uKjXSEN00Ig==
+"@actions/core@^1.4.0":
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/@actions/core/-/core-1.4.0.tgz#cf2e6ee317e314b03886adfeb20e448d50d6e524"
+  integrity sha512-CGx2ilGq5i7zSLgiiGUtBCxhRRxibJYU6Fim0Q1Wg2aQL2LTnF27zbqZOrxfvFQ55eSBW0L8uVStgtKMpa0Qlg==
 
 "@actions/exec@^1.0.4":
   version "1.0.4"