Fix CI workflow - use correct setup-uv version

- Change setup-uv@v3 to setup-uv@v2 (v3 doesn't exist yet)
- This should fix the failing CI runs in the pull request

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <[email protected]>

Author: TexasCoding

.github/workflows/ci.yml

@@ -13,7 +13,7 @@ jobs:
     - uses: actions/checkout@v4
 
     - name: Install uv
-      uses: astral-sh/setup-uv@v3
+      uses: astral-sh/setup-uv@v2
 
     - name: Set up Python
       run: uv python install 3.10
@@ -40,7 +40,7 @@ jobs:
     - uses: actions/checkout@v4
 
     - name: Install uv
-      uses: astral-sh/setup-uv@v3
+      uses: astral-sh/setup-uv@v2
 
     - name: Set up Python ${{ matrix.python-version }}
       run: uv python install ${{ matrix.python-version }}