ci : add self-hosted runner tag

Assisted-by: pi:llama.cpp/Qwen3.6-27B

Author: ggerganov

.github/workflows/branch-analysis.yml

@@ -10,7 +10,7 @@ permissions:
 
 jobs:
   update:
-    runs-on: dev-plot
+    runs-on: [self-hosted, dev-plot]
     steps:
       - uses: actions/checkout@v4