fix(action): add 'KSUN+SUSFS' to variant options for consistency in workflow

Co-authored-by: Copilot <copilot@github.com>

.github/workflows/main.yml

@@ -35,6 +35,7 @@ on:
           - KSUN+SUSFS+BBG+NET
           - KSUN+SUSFS+BBG
           - KSUN+SUSFS+NET
+          - KSUN+SUSFS
           - KSUN+BBG
           - KSUN+NET
           - BBG