ci(deps): bump astral-sh/setup-uv

Bumps the major-gh-actions group with 1 update in the / directory: [astral-sh/setup-uv](https://github.com/astral-sh/setup-uv).


Updates `astral-sh/setup-uv` from 7.6.0 to 8.1.0
- [Release notes](https://github.com/astral-sh/setup-uv/releases)
- [Commits](astral-sh/setup-uv@37802ad...0880764)

---
updated-dependencies:
- dependency-name: astral-sh/setup-uv
  dependency-version: 8.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: major-gh-actions
...

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

Author: dependabot[bot]

.github/workflows/tests.yml

@@ -22,7 +22,7 @@ jobs:
         python-version: '3.11'
 
     - name: Install uv
-      uses: astral-sh/setup-uv@37802adc94f370d6bfd71619e3f0bf239e1f3b78 # v7.6.0
+      uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
 
     - name: Install dependencies
       working-directory: attacker-infra