fix issue comment created (#80)

app.js

@@ -219,7 +219,7 @@ module.exports = (app) => {
       await context.octokit.rest.issues.addLabels({
         owner: context.payload.repository.owner.login,
         repo: context.payload.repository.name,
-        issue_number: context.payload.pull_request.number,
+        issue_number: context.payload.issue.number,
         labels: [emergencyLabel]
       }).then(response => {
         console.log(`${emergencyLabel} label applied to PR: ${context.payload.issue.pull_request.html_url}`);

test.js

@@ -111,7 +111,8 @@ const payloadPrComment = {
       url:  "https://api.github.com/repos/robandpdx/superbigmono/issues/1",
       pull_request: {
         html_url: "https://github.com/robandpdx/superbigmono/pull/1"
-      }
+      },
+      number: 1,
     },
     comment: {
       body: "We need an Emergency landing - this bug is critical!"