Testing codeowners stuff. (#8223)

Author: weshaggard

.github/CODEOWNERS

@@ -21,6 +21,7 @@
 /eng/                                  @azure/azure-sdk-eng
 /eng/common/                           @konrad-jamrozik @weshaggard @benbp
 /eng/common/TestResources/             @benbp @weshaggard @heaths
+/eng/common/README.md                  @weshaggard
 
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 # CODEOWNERS Linter pipeline