bump @actions/exec to 1.1.1

Author: alessio-perugini

package-lock.json

@@ -23,7 +23,7 @@
   "license": "MIT",
   "dependencies": {
     "@actions/core": "^1.2.6",
-    "@actions/exec": "^1.0.0",
+    "@actions/exec": "^1.1.1",
     "@actions/tool-cache": "^1.1.0",
     "semver": "^6.1.1"
   },