readthedocs: update build config (open-telemetry#3829)

xrmx · lzchen · ocelotl · web-flow · commit 814ace8bff7d · 2024-04-10T10:30:33.000-05:00
See https://blog.readthedocs.com/use-build-os-config/ Co-authored-by: Leighton Chen <lechen@microsoft.com> Co-authored-by: Diego Hurtado <ocelotl@users.noreply.github.com>
diff --git a/.readthedocs.yml b/.readthedocs.yml
@@ -6,9 +6,10 @@ sphinx:
   configuration: docs/conf.py
 
 build:
-  image: latest
+  os: "ubuntu-22.04"
+  tools:
+    python: "3.8"
 
 python:
-  version: 3.8
   install:
     - requirements: docs-requirements.txt
