Testing multi-target build

Author: JS Fillman

.github/workflows/manual-build.yml

@@ -6,7 +6,7 @@ on:
       platforms:
         description: 'The platforms for which the Docker image should be built. If not specified, defaults to linux/amd64.'
         required: false
-        default: 'linux/amd64,linux/arm64,linux/riscv64'
+        default: 'linux/amd64,linux/arm64/v8,linux/riscv64'
 jobs:
   build-push:
     uses: kbase/.github/.github/workflows/reusable_build-push.yml@develop