Fix/tag break (#44)

Author: DerekRoberts

action.yml

@@ -79,7 +79,7 @@ runs:
 
         # Bug - Docker build hates images with capital letters
         TAGS=$( echo "ghcr.io/${{ github.repository }}/${{ inputs.package }}:${{ inputs.tag }}" | tr '[:upper:]' '[:lower:]' )
-        echo "tags=${TAGS}" >> $GITHUB_OUTPUT
+        echo "tags=${TAGS//[$'\r\n ']}" >> $GITHUB_OUTPUT
 
     # Check if a build is required (steps.build.outputs.triggered=true|false)
     - name: Check for builds