Update .readthedocs.yaml

.readthedocs.yaml

@@ -5,6 +5,11 @@
 # Required
 version: 2
 
+build:
+  os: ubuntu-22.04
+  tools:
+    python: "3.11"
+
 # Build documentation in the docs/ directory with Sphinx
 sphinx:
    configuration: docs/source/conf.py
@@ -15,6 +20,5 @@ formats:
 
 # Optionally set the version of Python and requirements required to build your docs
 python:
-   version: 3.7
    install:
    - requirements: docs/requirements.txt