Merge pull request #35044 from joshjms/etcd-grpcproxy-test-release-3.5

etcd: Add grpcproxy test presubmits for release-3.5 branch

Author: k8s-ci-robot

config/jobs/etcd/etcd-presubmits.yaml

@@ -746,6 +746,7 @@ presubmits:
     branches:
       - main
       - release-3.6
+      - release-3.5
       - release-3.4
     decorate: true
     decoration_config:
@@ -777,6 +778,7 @@ presubmits:
     branches:
       - main
       - release-3.6
+      - release-3.5
       - release-3.4
     decorate: true
     decoration_config: