updated primary codeowners (#760)

Author: sujay-hashicorp

.github/CODEOWNERS

@@ -1,5 +1,5 @@
 * @hashicorp/consul-selfmanage-maintainers
 
 # release configuration
-/.release/                              @hashicorp/team-selfmanaged-releng
-/.github/workflows/build.yml            @hashicorp/team-selfmanaged-releng
+/.release/                              @hashicorp/consul-selfmanage-maintainers @hashicorp/team-selfmanaged-releng
+/.github/workflows/build.yml            @hashicorp/consul-selfmanage-maintainers @hashicorp/team-selfmanaged-releng