CODEOWNERS: add myself for asyncore/chat, ftplib and shutil modules (#17313)

Author: giampaolo

.github/CODEOWNERS

@@ -93,6 +93,7 @@ Include/pytime.h              @pganssle @abalkin
 /Tools/msi/                   @python/windows-team
 /Tools/nuget/                 @python/windows-team
 
+# Misc
 **/*itertools*                @rhettinger
 **/*collections*              @rhettinger
 **/*random*                   @rhettinger
@@ -108,6 +109,11 @@ Include/pytime.h              @pganssle @abalkin
 
 **/*typing*                   @gvanrossum @ilevkivskyi
 
+**/*asyncore                  @giampaolo
+**/*asynchat                  @giampaolo
+**/*ftplib                    @giampaolo
+**/*shutil                    @giampaolo
+
 # macOS
 /Mac/                         @python/macos-team
 **/*osx_support*              @python/macos-team