fix test failure with htslib 1.20.

fix test failure with htslib 1.20.

This data file contains invalid data, which is diagnosed by
improvements in bam_parse_basemod2() in HTSlib 1.20. Updating these
base modification data files to the versions in htslib and hts-specs
corrects the problem.
Author: John Marshall
Origin: upstream, https://github.com/pysam-developers/pysam/issues/1291#issuecomment-2131146211
Bug: https://github.com/pysam-developers/pysam/issues/1291
Reviewed-by: Étienne Mollier <emollier@debian.org>
Last-Update: 2024-05-29

Gbp-Pq: Name htslib-1.20.patch