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/third-party.yml

@@ -37,7 +37,7 @@ jobs:
           maturin build --release --out dist
 
       - name: Install uv
-        uses: astral-sh/setup-uv@v4
+        uses: astral-sh/setup-uv@v7
 
       - name: Checkout langchain-core
         uses: actions/checkout@v6
@@ -69,7 +69,7 @@ jobs:
         uses: actions/checkout@v6
 
       - name: Install uv
-        uses: astral-sh/setup-uv@v4
+        uses: astral-sh/setup-uv@v7
 
       - name: Setup Python
         uses: actions/setup-python@v5