pysam bugfix release v0.23.3 for new Cython release

This bugfix release works around a bug in the recently released Cython 3.1.2
whereby a new Cython-internal function incorrectly triggered the pysam build
system's duplicate symbol check.

pysam bugfix release v0.23.2 restoring binary compatibility

This bugfix release corrects v0.23.1 by restoring the AlignedSegment class
to the same size it had in v0.23.0 and previously.

pysam bugfix release v0.23.1 wrapping htslib/samtools/bcftools 1.21

This release adds musllinux wheels and has various other bug fixes
and improvements as listed in NEWS in the associated commit.

pysam release v0.23.0 wrapping htslib/samtools/bcftools 1.21

This release adds Python 3.13 support and wheels, reinstates
HTTPS/S3/GCS support in the pre-built wheels on Debian and
Ubuntu, improves documentation, and has various other bug fixes
and improvements as listed in NEWS in the associated commit.

pysam bugfix release v0.22.1 wrapping htslib/samtools/bcftools 1.18

pysam release v0.22.0 wrapping htslib/samtools/bcftools 1.18

This release removes Cython from the runtime dependencies (an issue
introduced in v0.21.0 that affected interactions with other packages),
removes the long-standing spurious "Could not retrieve index file"
message when opening an AlignmentFile, and has various other bug fixes
and improvements as listed in NEWS in the associated commit.

pysam v0.21.0 as published to PyPI

The eventual PyPI release of v0.21.0 was produced from this commit,
via a tag named 'publish-v0.21.0.1'. Differences from the v0.21.0 tag
were mainly cibuildwheel script trivia, but also included a libcbcf.pyx
change removing an incorrect annotation (17bb13d).

Merge pull request #1178 from pysam-developers/update-release-notes

updated release notes

Release notes updates

Merge pull request #1109 from pysam-developers/v0.19.1.x

V0.19.1.x