fix(ci): pin astral-sh/setup-uv to v9.0.0

`@v9` fails with "unable to find version v9" — astral-sh no longer publishes a floating major tag for setup-uv, only exact releases (latest v9.0.0). Pin to v9.0.0 across ci, publish, and qa-live.

Author: Abhinavexist

.github/workflows/ci.yml

@@ -19,7 +19,7 @@ jobs:
         python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
     steps:
       - uses: actions/checkout@v5
-      - uses: astral-sh/setup-uv@v9
+      - uses: astral-sh/setup-uv@v9.0.0
         with:
           python-version: ${{ matrix.python-version }}
           enable-cache: true
@@ -38,7 +38,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v5
-      - uses: astral-sh/setup-uv@v9
+      - uses: astral-sh/setup-uv@v9.0.0
         with:
           python-version: "3.9"
           enable-cache: true

.github/workflows/publish.yml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v5
-      - uses: astral-sh/setup-uv@v9
+      - uses: astral-sh/setup-uv@v9.0.0
         with:
           python-version: "3.12"
       - name: Build sdist + wheel

.github/workflows/qa-live.yml

@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v5
-      - uses: astral-sh/setup-uv@v9
+      - uses: astral-sh/setup-uv@v9.0.0
         with:
           python-version: "3.12"
           enable-cache: true