Fix release CI

Author: OCopping

.github/workflows/_release.yml

@@ -22,12 +22,16 @@ jobs:
 
       - name: Checkout
         uses: actions/checkout@v6
+        with:
+          # Need this to get version number from last tag
+          fetch-depth: 0
+          submodules: recursive
 
-      - name: Install python packages
-        uses: ./.github/actions/install_requirements
+      - name: Install uv
+        uses: astral-sh/setup-uv@v7
 
       - name: generate-schema
-        run: techui-builder --schema
+        run: uv run techui-builder --schema
 
       - name: Create GitHub Release
         # We pin to the SHA, not the tag, for security reasons.