chore: update CODEOWNERS (autowarefoundation#112)

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.github/CODEOWNERS

@@ -1,5 +1,4 @@
 ### Automatically generated from package.xml ###
-common/autoware_geography_utils/** anh.nguyen.2@tier4.jp masahiro.sakamoto@tier4.jp ryu.yamamoto@tier4.jp shintaro.sakoda@tier4.jp taiki.yamada@tier4.jp yamato.ando@tier4.jp
+common/autoware_geography_utils/** anh.nguyen.2@tier4.jp masahiro.sakamoto@tier4.jp ryu.yamamoto@tier4.jp shintaro.sakoda@tier4.jp taiki.yamada@tier4.jp yamato.ando@tier4.jp @autowarefoundation/autoware-core-global-codeowners
 
 ### Copied from .github/CODEOWNERS-manual ###
-* mfc@autoware.org ryohsuke.mitsudome@tier4.jp yutaka.kondo@tier4.jp