Add platforms and comments to ci build for PRs

.github/workflows/continuous-integration.yml

@@ -45,8 +45,9 @@ jobs:
         echo "pytag=${{ env.REGISTRY }}/stac-utils/pgstac-pyrust:$ref" >>$GITHUB_OUTPUT;
         echo "buildpy=$buildpg" >>$GITHUB_OUTPUT;
 
+  # This builds a base postgres image that has everything installed to be able to run pgstac. This image does not have pgstac itself installed.
   buildpg:
-    name: Build and push base postgres
+    name: Build and push base postgres image (you will need to run pypgstac migrate to install pgstac)
     if: ${{ needs.changes.outputs.buildpgdocker == 'true' }}
     runs-on: ubuntu-latest
     needs: [changes]
@@ -62,8 +63,9 @@ jobs:
       - name: Build and Push Base Postgres
         uses: docker/build-push-action@v4
         with:
+          platforms: linux/amd64,linux/arm64
           context: .
-          target: pgstacbase-plrust
+          target: pgstacbase
           file: docker/pgstac/Dockerfile
           tags: ${{ needs.changes.outputs.pgdocker }}
           push: true
@@ -87,6 +89,7 @@ jobs:
       - name: Build and Push Base pyrust
         uses: docker/build-push-action@v4
         with:
+          platforms: linux/amd64,linux/arm64
           context: .
           target: pyrustbase
           file: docker/pypgstac/Dockerfile