Added ARM64 debug configuration to CI.

Author: asmorkalov

.github/workflows/PR-4.x.yaml

@@ -9,6 +9,9 @@ jobs:
   Ubuntu2004-ARM64:
     uses: opencv/ci-gha-workflow/.github/workflows/OCV-PR-4.x-ARM64.yaml@main
 
+  Ubuntu2004-ARM64-Debug:
+    uses: opencv/ci-gha-workflow/.github/workflows/OCV-PR-4.x-ARM64-Debug.yaml@main
+
   Ubuntu2004-x64:
     uses: opencv/ci-gha-workflow/.github/workflows/OCV-PR-4.x-U20.yaml@main