dgpost release 2.2

What's Changed

• Fix reflection.cutoff_prune() by @PeterKraus in #90
• extract: Fix xarray dtypes by @PeterKraus in #91
• Fix pint issue by @NukP in #94
• Housekeeping part 1 by @PeterKraus in #93
• Use xarray.DataTree by @PeterKraus in #95
• Drop python 3.9 by @PeterKraus in #96
• transform.reflection: Peak picking using scipy.signal.find_peaks by @PeterKraus in #97
• Remove requests. by @PeterKraus in #99
• First draft integration tests by @PeterKraus in #100
• Prepare dgpost-2.2. by @PeterKraus in #98
• Update issue templates by @PeterKraus in #102
• dgpost-2.2 by @PeterKraus in #101

New Contributors

• @NukP made their first contribution in #94

Full Changelog: 2.1...2.2