python version: Some docs updates

ChangeLog.md

@@ -9,7 +9,7 @@ produce the Windows executables and installer.
 
 ---
 
-* We now test against, and package with, Python 3.10.1.
+* We now test against, and package with, Python 3.10.2.
 
   **As a consequence of this we no longer support Windows 7.  
   This is due to

docs/Releasing.md

@@ -439,6 +439,8 @@ When changing the Python version (Major.Minor.Patch) used:
 
    1. `.github/workflows/windows-build.yml` needs updating to have the GitHub
    based build use the correct version.
+   2. `ChangeLog.md` - The `We now test against, and package with, Python
+       M.m.P.` line.
 
 1. Major or Minor level changes: