chore: update CODEOWNERS with @AustinAbro321 (#2354)

## Description

This adds @AustinAbro321 as a CODEOWNER to review PRs

## Related Issue

Fixes #N/A

## Type of change

- [ ] Bug fix (non-breaking change which fixes an issue)
- [ ] New feature (non-breaking change which adds functionality)
- [X] Other (security config, docs update, etc)

## Checklist before merging

- [X] Test, docs, adr added or updated as needed
- [X] [Contributor Guide
Steps](https://github.com/defenseunicorns/zarf/blob/main/CONTRIBUTING.md#developer-workflow)
followed

CODEOWNERS

@@ -1,35 +1,35 @@
 * @defenseunicorns/zarf
 
 # Docs & examples
-/adr/ @jeff-mccoy @Racer159 @Noxsios @lucasrod16
-/docs/ @Madeline-UX @jeff-mccoy  @Racer159 @Noxsios @lucasrod16
-/examples/ @jeff-mccoy @Racer159 @Noxsios @lucasrod16
-*.md @Madeline-UX @jeff-mccoy @Racer159 @Noxsios @lucasrod16
+/adr/ @jeff-mccoy @Racer159 @Noxsios @lucasrod16 @AustinAbro321
+/docs/ @jeff-mccoy  @Racer159 @Noxsios @lucasrod16 @AustinAbro321
+/examples/ @jeff-mccoy @Racer159 @Noxsios @lucasrod16 @AustinAbro321
+*.md @jeff-mccoy @Racer159 @Noxsios @lucasrod16 @AustinAbro321
 
 # Core code
-/src/ @jeff-mccoy @Racer159 @Noxsios @lucasrod16
-/go.* @jeff-mccoy  @Racer159 @Noxsios @lucasrod16
-main.go @jeff-mccoy @Racer159 @Noxsios @lucasrod16
+/src/ @jeff-mccoy @Racer159 @Noxsios @lucasrod16 @AustinAbro321
+/go.* @jeff-mccoy  @Racer159 @Noxsios @lucasrod16 @AustinAbro321
+main.go @jeff-mccoy @Racer159 @Noxsios @lucasrod16 @AustinAbro321
 
 # Init package
-/packages/ @jeff-mccoy @Racer159 @Noxsios @lucasrod16
-/zarf.yaml @jeff-mccoy @Racer159 @Noxsios @lucasrod16
+/packages/ @jeff-mccoy @Racer159 @Noxsios @lucasrod16 @AustinAbro321
+/zarf.yaml @jeff-mccoy @Racer159 @Noxsios @lucasrod16 @AustinAbro321
 
 # Docs Website
-/docs-website/ @mike-winberry @Racer159 @Noxsios @jeff-mccoy @lucasrod16
+/docs-website/ @Racer159 @Noxsios @jeff-mccoy @lucasrod16 @AustinAbro321
 
 # Privileged pipeline files
-/.github/ @jeff-mccoy @Racer159 @Noxsios @lucasrod16
-/hack/ @jeff-mccoy @Racer159 @Noxsios @lucasrod16
-/.gitignore @jeff-mccoy @Racer159 @Noxsios @lucasrod16
-/.golangci.yml @jeff-mccoy @Racer159 @Noxsios @lucasrod16
-/.goreleaser.yml @jeff-mccoy @Racer159 @Noxsios @lucasrod16
-/.grype.yaml @jeff-mccoy @Racer159 @Noxsios @lucasrod16
-/Dockerfile @jeff-mccoy @Racer159 @Noxsios @lucasrod16
-/renovate.json @jeff-mccoy @Racer159 @Noxsios @lucasrod16
-/Makefile @jeff-mccoy @Racer159 @Noxsios @lucasrod16
+/.github/ @jeff-mccoy @Racer159 @Noxsios @lucasrod16 @AustinAbro321
+/hack/ @jeff-mccoy @Racer159 @Noxsios @lucasrod16 @AustinAbro321
+/.gitignore @jeff-mccoy @Racer159 @Noxsios @lucasrod16 @AustinAbro321
+/.golangci.yml @jeff-mccoy @Racer159 @Noxsios @lucasrod16 @AustinAbro321
+/.goreleaser.yml @jeff-mccoy @Racer159 @Noxsios @lucasrod16 @AustinAbro321
+/.grype.yaml @jeff-mccoy @Racer159 @Noxsios @lucasrod16 @AustinAbro321
+/Dockerfile @jeff-mccoy @Racer159 @Noxsios @lucasrod16 @AustinAbro321
+/renovate.json @jeff-mccoy @Racer159 @Noxsios @lucasrod16 @AustinAbro321
+/Makefile @jeff-mccoy @Racer159 @Noxsios @lucasrod16 @AustinAbro321
 
 # Additional privileged files
-/CODEOWNERS @jeff-mccoy @mikevanhemert @austenbryan
+/CODEOWNERS @jeff-mccoy @austenbryan
 /cosign.pub @jeff-mccoy @austenbryan
 /LICENSE @jeff-mccoy @austenbryan