add team-backends to codeowners (#1515)

### Description

add team-backends to codeowners

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### Type of Change

- [ ] New Example
- [ ] Example updates (Bug fixes, new features, etc.)
- [x] Other (changes to the codebase, but not to examples)

### New Example Checklist

- [ ] 🛫 `npm run new-example` was used to create the example
- [ ] 📚 The template wasn't used but I carefuly read the [Adding a new
example](https://github.com/vercel/examples#adding-a-new-example) steps
and implemented them in the example
- [ ] 📱 Is it responsive? Are mobile and tablets considered?

Author: ricardo-agz

.github/CODEOWNERS

@@ -15,10 +15,17 @@ solutions/testing @vercel/turbo-oss @goncy @lfades @lpalmes
 # A member of Solutions and Dev Rel is also added
 build-output-api @tootallnate @lfades @lpalmes
 
+# Backend language and service examples
+/go/ @vercel/team-backends
+/rust/ @vercel/team-backends
+/ruby/ @vercel/team-backends
+/services/ @vercel/team-backends
+/python/ @vercel/team-backends @vercel/team-python
+
 vercel-tutor @chibicode
 
 microfrontends @kitfoster @lazarv @mknichel
 
 cdn @vercel/edge-ingress @vercel/edge-content @vercel/edge-security @pranavkarthik10
 
-websockets @vercel/edge-ingress
+websockets @vercel/edge-ingress @vercel/team-backends @vercel/team-python