gh-142349: Add CODEOWNERS for lazy imports (#144840)

Author: pablogsal

.github/CODEOWNERS

@@ -292,6 +292,12 @@ Python/jit.c                  @brandtbucher @savannahostrowski @diegorusso
 Tools/jit/                    @brandtbucher @savannahostrowski @diegorusso
 InternalDocs/jit.md           @brandtbucher @savannahostrowski @diegorusso @AA-Turner
 
+# Lazy imports (PEP 810)
+Objects/lazyimportobject.c                 @twouters @DinoV @pablogsal
+Include/internal/pycore_lazyimportobject.h @twouters @DinoV @pablogsal
+Lib/test/test_import/test_lazy_imports.py  @twouters @DinoV @pablogsal
+Lib/test/test_import/data/lazy_imports/    @twouters @DinoV @pablogsal
+
 # Micro-op / μop / Tier 2 Optimiser
 Python/optimizer.c            @markshannon @Fidget-Spinner
 Python/optimizer_analysis.c   @markshannon @tomasr8 @Fidget-Spinner @savannahostrowski