build(deps): bump astral-sh/setup-uv from 6.0.0 to 8.1.0

Bumps [astral-sh/setup-uv](https://github.com/astral-sh/setup-uv) from 6.0.0 to 8.1.0.
- [Release notes](https://github.com/astral-sh/setup-uv/releases)
- [Commits](astral-sh/setup-uv@v6...v8.1.0)

---
updated-dependencies:
- dependency-name: astral-sh/setup-uv
  dependency-version: 8.1.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/pr.yml

@@ -44,7 +44,7 @@ jobs:
     - name: Install pnpm
       run: npm install -g pnpm
     - name: Install uv
-      uses: astral-sh/setup-uv@v6
+      uses: astral-sh/setup-uv@v8.1.0
     - name: get Python location
       id: python-location
       run: |

.github/workflows/release.yml

@@ -96,7 +96,7 @@ jobs:
 
       - name: Install uv
         # Pin setup-uv to a specific version; update as needed when upgrading uv or CI tooling
-        uses: astral-sh/setup-uv@v6.0.0
+        uses: astral-sh/setup-uv@v8.1.0
 
       - name: Compute Maven profiles
         id: compute_profiles