The listed file or maintainer script appears to access the internal database(s) of dpkg.
The entire dpkg database, its layout and files are an internal interface and no program or package should be accessing it, other than dpkg itself and the suite of dpkg tools.
Whilst the files may be editable by an admin, that's a supported (but unrecommended) feature reserved for humans and not for automatic tools.
For more information please consult:
The tag is present in Lintian version
That is the most recent version we know about.
We use semantic versions.
The patch number is a commit step indicator relative to the
release tag in our Git
You can find the detection logic for this version at commit c1c05b0. For merge requests, please use the latest version in the Lintian check files/contents.