Add issue template to redirect bug report to worker repo (#84)

Author: Hazhzeng

.github/workflows/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,11 @@
+---
+name: Bug report
+about: Create a report to help us improve
+title: "[BUG] Bug Title"
+---
+
+<!--
+The issues in this repository are no longer monitored.
+Please report the issue to Azure/azure-functions-python-worker via the following link:
+https://github.com/Azure/azure-functions-python-worker/issues/new?assignees=&labels=&template=bug_report.md&title=%5BBUG%5D+Bug+Title
+-->