Drizzlepac v3.6.2 release candidate 1

High-level Summary

Follow on to Release Candidate 0.

What's Changed

• Update code to update WPFC2 chip gaps by @stsci-hack in #1551
• HlA-1059: Reference catalog weights corrected by @s-goldman in #1616
• HLA-1052: Updated WFPC2 drizzle parameters for HAP by @s-goldman in #1617
• Fixed bug in calculation of the measurements for each detected source by @mdlpstsci in #1614
• HLA-1048: Redesign of readthedocs documentation by @s-goldman in #1620
• Drizzlepac: Ensure the "best" WCS solution is found when using a set by @mdlpstsci in #1638
• Correctly fix the wcs preferential order REL > IMG, GAIA*3 > GAIA[2|1] by @mdlpstsci in #1645
• drop support for Python 3.8 by @zacharyburnett in #1541
• Removed version restriction on Matplotlib by @mdlpstsci in #1649
• Allow group specifications as integers or tuples by @mcara in #1612

Full Changelog: 3.6.1...3.6.2rc1