chore(ci): replace local uv setup action with astral-sh/setup-uv@v6 (#8491)

* chore: remove setup-uv action configuration file as it is no longer needed

* chore: update setup-uv action to use the official action across all workflows

* chore: disable cache pruning in all workflows to improve build stability

* chore: update Python version to 3.13 and add pre-release description in workflows

.github/workflows/integration_tests.yml

@@ -44,9 +44,12 @@ jobs:
         with:
           ref: ${{ inputs.ref || github.ref }}
       - name: "Setup Environment"
-        uses: ./.github/actions/setup-uv
+        uses: astral-sh/setup-uv@v6
         with:
+          enable-cache: true
+          cache-dependency-glob: "uv.lock"
           python-version: ${{ matrix.python-version }}
+          prune-cache: false
       - name: Run integration tests with api keys
         timeout-minutes: 20
         run: |