chore(deps): update astral-sh/setup-uv action to v6.8.0

Author: kjoremiljo-renovate[bot]

.github/workflows/ci.yml

@@ -22,7 +22,7 @@ jobs:
         uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
 
       - name: Install uv
-        uses: astral-sh/setup-uv@v6
+        uses: astral-sh/setup-uv@d0cc045d04ccac9d8b7881df0226f9e82c39688e # v6.8.0
 
       - name: Run tests
         working-directory: ./determine-stacks

determine-stacks/action.yml

@@ -56,7 +56,7 @@ runs:
             - '**/*'
 
     - name: Install uv
-      uses: astral-sh/setup-uv@v6
+      uses: astral-sh/setup-uv@d0cc045d04ccac9d8b7881df0226f9e82c39688e # v6.8.0
 
     - name: Determine stacks
       id: stacks