Bump hynek/setup-cached-uv from 1 to 2

Bumps [hynek/setup-cached-uv](https://github.com/hynek/setup-cached-uv) from 1 to 2.
- [Release notes](https://github.com/hynek/setup-cached-uv/releases)
- [Changelog](https://github.com/hynek/setup-cached-uv/blob/main/CHANGELOG.md)
- [Commits](hynek/setup-cached-uv@v1...v2)

---
updated-dependencies:
- dependency-name: hynek/setup-cached-uv
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -63,7 +63,7 @@ jobs:
           allow-prereleases: true
 
       - name: Set up uv
-        uses: hynek/setup-cached-uv@v1
+        uses: hynek/setup-cached-uv@v2
       - name: Set up nox
         uses: wntrblm/[email protected]
 
@@ -90,7 +90,7 @@ jobs:
         with:
           python-version: "3.x"
       - name: Set up uv
-        uses: hynek/setup-cached-uv@v1
+        uses: hynek/setup-cached-uv@v2
       - name: Install dependencies
         run: uv pip install --system build