chore: sync CODEOWNERS and OWNERS.md from main to v2 (#1122)

## Summary

- Updates CODEOWNERS and OWNERS.md on the v2 branch to match the current
state of main
- Adds Andrew Block (@sabre1041) and Terry Howe (@TerryHowe) as active
owners
- Moves Sajay Antony (@sajayantony) and Steve Lasker (@SteveLasker) to
Emeritus

## Changes

**CODEOWNERS**: `@sajayantony @stevelasker` → `@sabre1041 @TerryHowe`

**OWNERS.md**: Reflects updated active owners and updated emeritus list
to match main branch.

Signed-off-by: Terry Howe <terrylhowe@gmail.com>

Author: TerryHowe

CODEOWNERS

@@ -1,2 +1,2 @@
 # Derived from OWNERS.md
-* @sajayantony @shizhMSFT @stevelasker @Wwwsylvia
+* @sabre1041 @shizhMSFT @TerryHowe @Wwwsylvia

OWNERS.md

@@ -1,11 +1,13 @@
 # Owners
 
 Owners:
-  - Sajay Antony (@sajayantony)
+  - Andrew Block (@sabre1041)
   - Shiwei Zhang (@shizhMSFT)
-  - Steve Lasker (@stevelasker)
   - Sylvia Lei (@Wwwsylvia)
+  - Terry Howe (@TerryHowe)
 
 Emeritus:
   - Avi Deitcher (@deitch)
   - Josh Dolitsky (@jdolitsky)
+  - Sajay Antony (@sajayantony)
+  - Steve Lasker (@stevelasker)