Bump @actions/core from 1.3.0 to 1.4.0

Bumps [@actions/core](https://github.com/actions/toolkit/tree/HEAD/packages/core) from 1.3.0 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:development
  update-type: version-update:semver-minor
...
Signed-off-by: dependabot[bot] <support@github.com>

yarn.lock

@@ -3,9 +3,9 @@
 
 
 "@actions/core@^1.2.6":
-  version "1.3.0"
-  resolved "https://registry.yarnpkg.com/@actions/core/-/core-1.3.0.tgz#f5e4b24c889e7f2e58b466cc8c7481292284eba0"
-  integrity sha512-xxtX0Cwdhb8LcgatfJkokqT8KzPvcIbwL9xpLU09nOwBzaStbfm0dNncsP0M4us+EpoPdWy7vbzU5vSOH7K6pg==
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/@actions/core/-/core-1.4.0.tgz#cf2e6ee317e314b03886adfeb20e448d50d6e524"
+  integrity sha512-CGx2ilGq5i7zSLgiiGUtBCxhRRxibJYU6Fim0Q1Wg2aQL2LTnF27zbqZOrxfvFQ55eSBW0L8uVStgtKMpa0Qlg==
 
 "@babel/code-frame@7.12.11":
   version "7.12.11"