FIX plantuml local build

.github/workflows/test.yml

@@ -20,12 +20,14 @@ jobs:
         with:
           environments: >-
             dev
+            docs
             nogil
           cache: true
 
       - name: Re-install local
         run: |
           pixi reinstall -e dev --frozen fastcan
+          pixi reinstall -e docs --frozen fastcan
           pixi reinstall -e nogil --frozen fastcan
 
       - name: Test with pytest
@@ -34,8 +36,8 @@ jobs:
       - name: Test with doctest
         if: matrix.os == 'ubuntu-latest'
         run: |
-          pixi run -e dev doc
-          pixi run -e dev doc sphinx-build doctest
+          pixi run -e docs doc
+          pixi run -e docs doc sphinx-build doctest
       - name: Test nogil
         run: |
           pixi run -e nogil nogil-eta

.readthedocs.yml

@@ -1,12 +1,15 @@
 version: 2
 build:
-  os: ubuntu-24.04
-  tools:
-    python: "mambaforge-latest"
-
-conda:
-  environment: rtd-environment.yml
-
-sphinx:
-   configuration: doc/conf.py
-   fail_on_warning: true
+   os: ubuntu-24.04
+   tools:
+      python: "3.12"
+   jobs:
+      create_environment:
+         - asdf plugin add pixi
+         - asdf install pixi latest
+         - asdf global pixi latest
+      install:
+         - pixi install -e docs
+      build:
+         html:
+            - pixi run -e docs sphinx-build -T -b html doc $READTHEDOCS_OUTPUT/html --fail-on-warning