this node env doesn't support ?.

Author: GrantBirki

dist/index.js

@@ -99,14 +99,18 @@ async function run() {
 
     // in most cases, ${{ github.event.number }} is the issue number
     // if it is blank, then try to fetch it from the context
-    core.debug(
-      `github.context.payload.issue.number: ${github.context.payload.issue.number}`
-    )
+    const issueNumberFallback =
+      github &&
+      github.context &&
+      github.context.payload &&
+      github.context.payload.issue &&
+      github.context.payload.issue.number
+    core.debug(`issueNumberFallback: ${issueNumberFallback}`)
     if (!inputs.issueNumber) {
       core.debug(
-        `issueNumber is not set, trying to fetch from the github.context`
+        `issueNumber is not set, trying to set from the issueNumberFallback: ${issueNumberFallback}`
       )
-      inputs.issueNumber = github.context.payload.issue.number
+      inputs.issueNumber = issueNumberFallback
     }
 
     core.debug(`Inputs: ${inspect(inputs)}`)