Bump astral-sh/setup-uv from 6 to 7 in the all group (#1252)

Bumps the all group with 1 update: [astral-sh/setup-uv](https://github.com/astral-sh/setup-uv).


Updates `astral-sh/setup-uv` from 6 to 7
- [Release notes](https://github.com/astral-sh/setup-uv/releases)
- [Commits](astral-sh/setup-uv@v6...v7)

---
updated-dependencies:
- dependency-name: astral-sh/setup-uv
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: all
...

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Author: dependabot[bot]

.github/workflows/upstream.yml

@@ -21,7 +21,7 @@ jobs:
       - uses: actions/checkout@v5
 
       - name: Set up uv
-        uses: astral-sh/setup-uv@v6
+        uses: astral-sh/setup-uv@v7
         with:
           python-version: ${{ matrix.python-version }}