docs: Backport v2 docs building fix

Author: provinzkraut

.github/workflows/docs.yml

@@ -10,15 +10,14 @@ on:
   workflow_dispatch:
     inputs:
       version:
-        description: 'Version to build docs for (1, 2, main, or release)'
+        description: 'Version to build docs for (1, 2, main)'
         required: true
         default: 'main'
         type: choice
         options:
           - main
           - '2'
           - '1'
-          - release
 
 env:
   UV_LOCKED: 1
@@ -55,10 +54,6 @@ jobs:
         run: uv run python tools/build_docs.py docs-build --version main
         if: github.event_name == 'push' && github.ref == 'refs/heads/main'
 
-      - name: Build docs (v3.0 branch)
-        run: uv run python tools/build_docs.py docs-build --version 3-dev
-        if: github.event_name == 'push' && github.ref == 'refs/heads/v3.0'
-
       - name: Build docs (manual trigger)
         run: |
           if [ "${{ inputs.version }}" == "release" ]; then

docs/_static/versions.json

@@ -1 +1 @@
-{ "versions": ["1", "2", "main", "3-dev"], "latest": "2" }
+{ "versions": ["1", "2", "main"], "latest": "2" }