Missing license header in global-labels.xml

The build is failing due to a missing license file header. This file must either have a license header or excluded from the pedantic rat scan:

1 Unknown Licenses
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Unapproved licenses:
dashboard-plugins/essentials-skeleton-package/src/main/resources/instructions/content/global-labels.xml
dashboard-plugins/dashboard-contentblocks-plugin/src/main/java/org/onehippo/cms7/essentials/plugins/contentblocks/model/ContentBlocksRestful.java
dashboard-plugins/dashboard-contentblocks-plugin/src/main/java/org/onehippo/cms7/essentials/plugins/contentblocks/model/ProviderRestful.java
dashboard-plugins/dashboard-contentblocks-plugin/src/main/java/org/onehippo/cms7/essentials/plugins/contentblocks/ContentBlocksException.java