Convert action to TypeScript

__fixtures__/@actions/github.ts

@@ -0,0 +1,27 @@
+import * as octokit from '../@octokit/rest.js'
+
+export const getOctokit = () => octokit
+
+export const context = {
+  eventName: 'pull_request',
+  issue: {
+    number: 10
+  },
+  payload: {
+    number: 10,
+    issue: {
+      number: 10
+    },
+    pull_request: {
+      number: 10
+    },
+    sender: {
+      login: 'mona'
+    }
+  },
+  action: 'opened',
+  repo: {
+    owner: 'actions',
+    repo: 'first-interaction'
+  }
+}