Upload ECR image to correct ECR repo (#32948)

Co-authored-by: emilymianeil <eneil@hashicorp.com>

.github/workflows/build.yml

@@ -149,7 +149,7 @@ jobs:
           dockerfile: .github/workflows/build-Dockerfile
           tags: |
             docker.io/hashicorp/${{env.repo}}:${{env.version}}
-            986891699432.dkr.ecr.us-east-1.amazonaws.com/hashicorp/${{env.repo}}:${{env.version}}
+            public.ecr.aws/hashicorp/${{env.repo}}:${{env.version}}
 
   e2etest-build:
     name: Build e2etest for ${{ matrix.goos }}_${{ matrix.goarch }}