Update readthedocs configuration

Author: bwoodsend

.readthedocs.yaml

@@ -1,8 +1,11 @@
 version: 2
 
+build:
+  os: ubuntu-22.04
+  tools:
+    python: '3.10'
+
 python:
-  version: 3.7
   install:
+    - path: .
     - requirements: docs/requirements.txt
-    - method: pip
-      path: .

docs/requirements.txt

@@ -5,7 +5,7 @@ sphinx-autodoc-typehints==1.11.1
 sphinx-copybutton==0.3.3
 sphinxcontrib-websupport==1.1.0
 sphinx-rtd-theme==0.5.0
-pyqt5
+PyQt5
 
 # Indirect dependencies.
 docutils==0.16
@@ -15,3 +15,4 @@ sphinxcontrib-devhelp==1.0.2
 sphinxcontrib-htmlhelp==2.0.0
 sphinxcontrib-jsmath==1.0.1
 sphinxcontrib-qthelp==1.0.3
+sphinxcontrib-serializinghtml==1.1.5