Update package.json & yarn.lock

Author: MSP-Greg

package.json

@@ -23,13 +23,13 @@
   },
   "homepage": "https://github.com/ruby/setup-ruby",
   "dependencies": {
-    "@actions/core": "^1.1.1",
-    "@actions/exec": "^1.0.1",
-    "@actions/io": "^1.0.1",
-    "@actions/tool-cache": "^1.1.2"
+    "@actions/core": "^1.2.3",
+    "@actions/exec": "^1.0.3",
+    "@actions/io": "^1.0.2",
+    "@actions/tool-cache": "^1.3.1"
   },
   "devDependencies": {
-    "@zeit/ncc": "^0.20.5",
-    "eslint": "^6.3.0"
+    "@zeit/ncc": "^0.21.1",
+    "eslint": "^6.8.0"
   }
 }