Bump astral-sh/setup-uv from 4 to 7

Bumps [astral-sh/setup-uv](https://github.com/astral-sh/setup-uv) from 4 to 7.
- [Release notes](https://github.com/astral-sh/setup-uv/releases)
- [Commits](astral-sh/setup-uv@v4...v7)

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

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

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -16,7 +16,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - uses: astral-sh/setup-uv@v4
+      - uses: astral-sh/setup-uv@v7
         with:
           version: "latest"
 

.github/workflows/docs.yml

@@ -19,7 +19,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - uses: astral-sh/setup-uv@v4
+      - uses: astral-sh/setup-uv@v7
         with:
           version: "latest"
 

.github/workflows/release.yml

@@ -14,7 +14,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - uses: astral-sh/setup-uv@v4
+      - uses: astral-sh/setup-uv@v7
         with:
           version: "latest"
 
@@ -43,7 +43,7 @@ jobs:
       - name: Build frontend
         run: cd frontend && npm ci && npm run build
 
-      - uses: astral-sh/setup-uv@v4
+      - uses: astral-sh/setup-uv@v7
         with:
           version: "latest"