Push preview images to GHCR instead of ECR

Replace internal ECR override registries with ghcr.io for
package-manager-preview dev version images (both preview and
daily streams). This aligns with the pattern already used by
images-connect and eliminates the AWS OIDC dependency from
the development workflow.

Author: bschwedler

.github/workflows/development.yml

@@ -42,11 +42,8 @@ jobs:
     permissions:
       contents: read
       packages: write
-      id-token: write  # Required for AWS OIDC login
 
     uses: "posit-dev/images-shared/.github/workflows/bakery-build-native.yml@main"
-    secrets:
-      AWS_ROLE: ${{ secrets.AWS_ROLE }}
     with:
       dev-versions: "only"
       # Push images only for merges into main and hourly schduled re-builds.

bakery.yaml

@@ -49,7 +49,8 @@ images:
               - linux/arm64
           - name: Ubuntu 22.04
         overrideRegistries:
-          - host: "528395739535.dkr.ecr.us-east-2.amazonaws.com"
+          - host: "ghcr.io"
+            namespace: "posit-dev"
             repository: "package-manager-preview"
       - sourceType: "stream"
         product: "package-manager"
@@ -62,7 +63,8 @@ images:
               - linux/arm64
           - name: Ubuntu 22.04
         overrideRegistries:
-          - host: "528395739535.dkr.ecr.us-east-2.amazonaws.com"
+          - host: "ghcr.io"
+            namespace: "posit-dev"
             repository: "package-manager-preview"
     variants:
       - name: Standard