feat(ci): Allow uploading single files

action.yml

@@ -24,6 +24,8 @@ inputs:
   release-dir:
     description: 'Directory in which release assets are uploaded or downloaded'
     default: 'dist/release'
+  release-files:
+    description: 'Path to one or multiple release asset files to be uploaded (can be used alongside `release-dir`)'
   release-notes:
     description: 'Release notes'
   release-notes-file:
@@ -96,6 +98,7 @@ runs:
         export TOKEN=${{ inputs.token }}
 
         export RELEASE_DIR="${{ inputs.release-dir }}"
+        export RELEASE_FILES=(${{ inputs.release-files }})
 
         export RELEASENOTES=$(cat << 'EOF'
         ${{ inputs.release-notes }}