chore: Update CODEOWNERS (#43)

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- [ ] Code conforms to the [Elixir
Styleguide](https://github.com/christopheradams/elixir_style_guide)

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.github/CODEOWNERS

@@ -1 +1 @@
-* @stordco/core-platform @stordco/sre
+* @stordco/engineering @stordco/sre