CI: extend aiter wheel artifact retention (#823)

Author: gyohuangxin

.github/workflows/atom-sglang-test.yaml

@@ -192,7 +192,7 @@ jobs:
         with:
           name: aiter-whl
           path: aiter-whl/amd_aiter*.whl
-          retention-days: 1
+          retention-days: 7
 
   atom-sglang-accuracy:
     needs: [check-signal, download_aiter_wheel]

.github/workflows/atom-test.yaml

@@ -199,7 +199,7 @@ jobs:
         with:
           name: aiter-whl
           path: aiter-whl/amd_aiter*.whl
-          retention-days: 1
+          retention-days: 7
 
   load-test-models:
     name: Load test model configs

.github/workflows/atom-vllm-test.yaml

@@ -192,7 +192,7 @@ jobs:
         with:
           name: aiter-whl
           path: aiter-whl/amd_aiter*.whl
-          retention-days: 1
+          retention-days: 7
 
   atom-vllm-oot:
     needs: [check-signal, download_aiter_wheel]