Bump @actions/core from 1.2.4 to 1.2.6

Bumps [@actions/core](https://github.com/actions/toolkit/tree/HEAD/packages/core) from 1.2.4 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>

package.json

@@ -19,7 +19,7 @@
     "release": "yarn format && yarn lint && yarn rebuild && yarn install --production --frozen-lockfile --no-bin-links"
   },
   "dependencies": {
-    "@actions/core": "^1.2.4",
+    "@actions/core": "^1.2.6",
     "@actions/exec": "^1.0.4",
     "@actions/io": "^1.0.1",
     "@actions/tool-cache": "^1.6.0",

yarn.lock

@@ -2,10 +2,10 @@
 # yarn lockfile v1
 
 
-"@actions/core@^1.2.3", "@actions/core@^1.2.4":
-  version "1.2.4"
-  resolved "https://registry.npm.taobao.org/@actions/core/download/@actions/core-1.2.4.tgz#96179dbf9f8d951dd74b40a0dbd5c22555d186ab"
-  integrity sha1-lhedv5+NlR3XS0Cg29XCJVXRhqs=
+"@actions/core@^1.2.3", "@actions/core@^1.2.6":
+  version "1.2.6"
+  resolved "https://registry.yarnpkg.com/@actions/core/-/core-1.2.6.tgz#a78d49f41a4def18e88ce47c2cac615d5694bf09"
+  integrity sha512-ZQYitnqiyBc3D+k7LsgSBmMDVkOVidaagDG7j3fOym77jNunWRuYx7VSHa9GNfFZh+zh61xsCjRj4JxMZlDqTA==
 
 "@actions/exec@^1.0.0", "@actions/exec@^1.0.4":
   version "1.0.4"