[CI] Skip stage health check for release branch cut (#21488)

.github/workflows/pr-test-jit-kernel.yml

@@ -22,6 +22,10 @@ on:
         required: false
         type: string
         default: 'false'
+      skip_stage_health_check:
+        required: false
+        type: boolean
+        default: false
 
 # Workflow-level env is NOT inherited from the caller in reusable workflows (verified by CI test).
 # The github context (including github.event_name) IS inherited from the caller.
@@ -30,6 +34,7 @@ env:
   SGLANG_CUDA_COREDUMP: "1"
   SGLANG_JIT_DEEPGEMM_FAST_WARMUP: true
   SGLANG_PR_TEST_BYPASS_MAINTENANCE_ON_MAIN: ${{ github.ref == 'refs/heads/main' && 'true' || 'false' }}
+  SKIP_STAGE_HEALTH_CHECK: ${{ inputs.skip_stage_health_check == true && 'true' || 'false' }}
 
 jobs:
   jit-kernel-unit-test: