Update astral-sh/setup-uv action to v8.1.0

Author: renovate-ethena-app[bot]

.github/workflows/main-push-and-pr.yml

@@ -20,7 +20,7 @@ jobs:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
 
       - name: Set up uv
-        uses: astral-sh/setup-uv@cec208311dfd045dd5311c1add060b2062131d57 # v8.0.0
+        uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
 
       - name: Install dependencies
         run: make install