Tweak

Author: Tinche

.readthedocs.yml

@@ -4,7 +4,7 @@ sphinx:
   configuration: docs/conf.py
 
 build:
-  os: ubuntu-20.04
+  os: ubuntu-lts-latest
   tools:
     # Keep version in sync with tox.ini (docs and gh-actions).
     python: "3.11"
@@ -13,9 +13,10 @@ build:
       - asdf plugin add uv
       - asdf install uv latest
       - asdf global uv latest
-      - UV_PROJECT_ENVIRONMENT=$READTHEDOCS_VIRTUALENV_PATH uv sync --group docs --link-mode=copy
       - uv tool install rust-just
     # Need the tags to calculate the version
+    install:
+      - UV_PROJECT_ENVIRONMENT=$READTHEDOCS_VIRTUALENV_PATH uv sync --group docs --link-mode=copy
     post_install:
       - git fetch --tags
     build: