Add 5.3.0 to bug-report template (#8687)

Update BUG-REPORT.yml

Signed-off-by: AlexFenlon <[email protected]>

Author: AlexFenlon

.github/ISSUE_TEMPLATE/BUG-REPORT.yml

@@ -14,6 +14,7 @@ body:
       description: What version of our F5 NGINX Ingress Controller are you running?
       options:
         - edge
+        - 5.3.0
         - 5.2.1
         - 5.2.0
         - 5.1.1