Bump nginx to 1.28.0 (#381)

This PR was created automatically to update nginx to 1.28.0.

Co-authored-by: mkjpryor <[email protected]>

Author: azimuth-automation-bot[bot]

.github/workflows/build-push-artifacts.yaml

@@ -22,7 +22,7 @@ on:
         value: ${{ jobs.build_push_chart.outputs.chart-version }}
 
 env:
-  NGINX_VERSION: 1.27.3
+  NGINX_VERSION: 1.28.0
 
 jobs:
   build_push_images: