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/actions/setup-uv/action.yml

@@ -1,17 +0,0 @@
-name: "Setup uv"
-description: "Checks out code, installs uv, and sets up Python environment"
-
-inputs:
-  python-version:
-    description: "Python version to use"
-    default: "3.13"
-
-runs:
-  using: "composite"
-  steps:
-    - name: Install uv
-      uses: astral-sh/setup-uv@v6
-      with:
-        enable-cache: true
-        cache-dependency-glob: "uv.lock"
-        python-version: ${{ inputs.python-version }}