Update backport labels from v1.0 to v1.1 CTR

Signed-off-by: Oleksandr Porunov <alexandr.porunov@gmail.com>

Author: porunov

.github/dependabot.yml

@@ -11,7 +11,7 @@ updates:
       patterns:
         - "org.junit.*"
   labels:
-    - "backport/v1.0"
+    - "backport/v1.1"
     - "dependencies"
     - "java"