docs: specify docs build.os & update docs to python 3.10 (intel#3349)

*  fixes intel#3323

---------

Signed-off-by: Terri Oda <terri.oda@intel.com>

.readthedocs.yml

@@ -5,6 +5,12 @@
 # Required
 version: 2
 
+# Set the OS, Python version and other tools you might need
+build:
+  os: ubuntu-22.04
+  tools:
+    python: "3.10"
+
 # Build documentation in the docs/ directory with Sphinx
 sphinx:
   configuration: doc/conf.py
@@ -19,6 +25,6 @@ formats:
 
 # Optionally set the version of Python and requirements required to build your docs
 python:
-  version: 3.8
   install:
     - requirements: doc/requirements.txt
+