⬆️ Update astral-sh/setup-uv action to v6 (#77)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/ci.yaml

@@ -19,7 +19,7 @@ jobs:
       - name: ⤵️ Check out code from GitHub
         uses: actions/[email protected]
       - name: 🏗 Set up uv
-        uses: astral-sh/setup-uv@v5
+        uses: astral-sh/setup-uv@v6
         with:
           enable-cache: true
       - name: 🏗 Set pre-commit cache
@@ -43,7 +43,7 @@ jobs:
       - name: ⤵️ Check out code from GitHub
         uses: actions/[email protected]
       - name: 🏗 Set up uv
-        uses: astral-sh/setup-uv@v5
+        uses: astral-sh/setup-uv@v6
         with:
           enable-cache: true
       - name: 🏗 Set up Python ${{ matrix.python }}
@@ -70,7 +70,7 @@ jobs:
       - name: ⬇️ Download coverage data
         uses: actions/[email protected]
       - name: 🏗 Set up uv
-        uses: astral-sh/setup-uv@v5
+        uses: astral-sh/setup-uv@v6
         with:
           enable-cache: true
       - name: 🏗 Install dependencies

.github/workflows/release.yaml

@@ -21,7 +21,7 @@ jobs:
       - name: ⤵️ Check out code from GitHub
         uses: actions/[email protected]
       - name: 🏗 Set up uv
-        uses: astral-sh/setup-uv@v5
+        uses: astral-sh/setup-uv@v6
         with:
           enable-cache: true
       - name: 🏗 Set package version