ci: Enforce CI test execution for cherrypicked PRs (#5288) (#5301)

diff --git a/.github/workflows/test-e2e.yml b/.github/workflows/test-e2e.yml
index 93bf1f0..8d8f6a1 100644
--- a/.github/workflows/test-e2e.yml
+++ b/.github/workflows/test-e2e.yml
@@ -21,7 +21,7 @@
   push:
     branches: [main]
   pull_request:
-    branches: [main]
+    branches: [main, release-*]
     paths:
       - "**.go"
       - '**.py'
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index f5ee838..858919c 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -21,7 +21,7 @@
   push:
     branches: [main]
   pull_request:
-    branches: [ main ]
+    branches: [main, release-*]
     paths:
       - '**.go'
       - '**.py'