Open a GitHub Issue if vulnerabilities are found (#8)

* Get GitHub access token from input

* install npm package

* fix TypeScript error to successfully build

ref: https://github.com/actions/toolkit/issues/199

* npm i strip-ansi to remove control characters

* create an issue

* use template literal to pass lint

* npm run format; npm run lint

* use inputs.issue_title as issue title

* document inputs.issue_title

* add inputs.issue_title

@types/octokit/index.d.ts

@@ -0,0 +1,4 @@
+declare module '@octokit/graphql' {
+  export type Variables = any
+  export type GraphQlQueryResponse = any
+}