Fix codeowners named Χριστόφορος

Signed-off-by: Christopher Ng <chrng8@gmail.com>

.github/CODEOWNERS

@@ -2,7 +2,7 @@
 /apps/admin_audit/appinfo/info.xml            @luka-nextcloud @blizzz
 /apps/cloud_federation_api/appinfo/info.xml   @vitormattos @mejo-
 /apps/comments/appinfo/info.xml               @marcelklehr @Pytal
-/apps/contactsinteraction/appinfo/info.xml    @kesselb @miaulalala @Pytal @GretaD @hamza221 @st3iny
+/apps/contactsinteraction/appinfo/info.xml    @kesselb @miaulalala @ChristophWurst @GretaD @hamza221 @st3iny
 /apps/dashboard/appinfo/info.xml              @julien-nc @juliushaertl
 /apps/dav/lib/CalDAV                          @ChristophWurst @miaulalala @tcitworld
 /apps/dav/lib/CardDAV                         @ChristophWurst @miaulalala @tcitworld
@@ -14,7 +14,7 @@
 /apps/files_sharing/appinfo/info.xml          @skjnldsv @come-nc
 /apps/files_trashbin/appinfo/info.xml         @Pytal @icewind1991
 /apps/files_versions/appinfo/info.xml         @artonge @icewind1991
-/apps/oauth2/appinfo/info.xml                 @julien-nc @Pytal
+/apps/oauth2/appinfo/info.xml                 @julien-nc @ChristophWurst
 /apps/provisioning_api/appinfo/info.xml       @provokateurin @nickvergessen
 /apps/settings/appinfo/info.xml               @Pytal @JuliaKirschenheuter
 /apps/systemtags/appinfo/info.xml             @Antreesy @marcelklehr