/usr/lib/perl5/Bio/DB/ is in libbio-samtools-perl 1.39-1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/perl5/Bio/DB/Bam/
/usr/lib/perl5/Bio/DB/Bam/AlignWrapper.pm
/usr/lib/perl5/Bio/DB/Bam/Alignment.pm
/usr/lib/perl5/Bio/DB/Bam/FetchIterator.pm
/usr/lib/perl5/Bio/DB/Bam/Pileup.pm
/usr/lib/perl5/Bio/DB/Bam/PileupWrapper.pm
/usr/lib/perl5/Bio/DB/Bam/Query.pm
/usr/lib/perl5/Bio/DB/Bam/ReadIterator.pm
/usr/lib/perl5/Bio/DB/Bam/Target.pm
/usr/lib/perl5/Bio/DB/Sam/
/usr/lib/perl5/Bio/DB/Sam.pm
/usr/lib/perl5/Bio/DB/Sam/Constants.pm
/usr/lib/perl5/Bio/DB/Sam/SamToGBrowse.pm
/usr/lib/perl5/Bio/DB/Sam/Segment.pm