chore(deps): bump @actions/core from 1.2.0 to 1.2.6 (#5)

Bumps [@actions/core](https://github.com/actions/toolkit/tree/HEAD/packages/core) from 1.2.0 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: atymic <atymicq@gmail.com>

Author: dependabot[bot]

package.json

@@ -7,7 +7,7 @@
   },
   "bugs": "https://github.com/atymic/deployer-php-action/issues",
   "dependencies": {
-    "@actions/core": "^1.2.0",
+    "@actions/core": "^1.2.6",
     "@zeit/ncc": "^0.20.5",
     "bluebird": "^3.7.2",
     "execa": "^3.4.0",

yarn.lock

@@ -2,10 +2,10 @@
 # yarn lockfile v1
 
 
-"@actions/core@^1.2.0":
-  version "1.2.0"
-  resolved "https://registry.yarnpkg.com/@actions/core/-/core-1.2.0.tgz#aa5f52b26c362c821d41557e599371a42f6c0b3d"
-  integrity sha512-ZKdyhlSlyz38S6YFfPnyNgCDZuAF2T0Qv5eHflNWytPS8Qjvz39bZFMry9Bb/dpSnqWcNeav5yM2CTYpJeY+Dw==
+"@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==
 
 "@babel/code-frame@^7.0.0":
   version "7.5.5"