The current wmf-opensearch-search-plugins supplies a file that's already owned by the upstream OpenSearch package:

dpkg: error processing archive /var/cache/apt/archives/wmf-opensearch-search-plugins_2.19.5+3~bullseye_all.deb (--unpack):
 trying to overwrite '/usr/share/opensearch/plugins/opensearch-knn/LICENSE.txt', which is also in package opensearch (2.19.5)
Errors were encountered while processing:
 /var/cache/apt/archives/wmf-opensearch-search-plugins_2.19.5+3~bullseye_all.deb

Creating this ticket to:

• Ensure we don't enable any unwanted plugins from the upstream opensearch package in production (see this blubberfile for an example of how we do this in our Docker image)
• Determine a fix (remove the file from the package? Change its path)?
• Build a new version of the plugin
• Apply the new version of the plugin