adding graph ql for Helm versions - master (#22)

* Adding graphql to find out latest helm version of specified type

* Updating package-loc.json

* Updating js file

* Fixing PR comments

* Adding feature flag as environment variable

* Changing feature flag name

* Updating package-loc.json

package.json

@@ -6,10 +6,11 @@
     "author": "Anumita Shenoy",
     "license": "MIT",
     "dependencies": {
-        "@actions/tool-cache": "1.1.2",
-        "@actions/io": "^1.0.0",
         "@actions/core": "^1.2.6",
         "@actions/exec": "^1.0.0",
+        "@actions/io": "^1.0.0",
+        "@actions/tool-cache": "1.1.2",
+        "@octokit/graphql": "^4.6.1",
         "semver": "^6.1.0"
     },
     "main": "lib/run.js",