Fix Linux build trigger tag (#6765)

Author: lukicdarkoo

.github/workflows/test_suite_linux.yml

@@ -8,7 +8,7 @@ on:
   push:
     tags:
       - nightly_*
-      - R22*
+      - R20*
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}