Update changelog and bump version to 0.4.4 #729

Job	Run time
Documentation	9m 21s
Python 3.6 • ubuntu-20.04	6m 57s
Python 3.7 • ubuntu-20.04	6m 51s
Python 3.8 (with Praat tests) • ubuntu-20.04	21m 41s
Python 3.9 • ubuntu-20.04	7m 5s
Python 3.10 • ubuntu-20.04	7m 7s
Python 3.11 • ubuntu-20.04	6m 54s
Python 3.12 (with Praat tests) • ubuntu-20.04	21m 23s
Python pypy-2.7 • ubuntu-20.04	8m 10s
Python pypy-3.7 • ubuntu-20.04	7m 4s
Python pypy-3.8 • ubuntu-20.04	7m 7s
Python pypy-3.9 (with Praat tests) • ubuntu-20.04	22m 0s
Python 3.8 (GCC 10) • ubuntu-20.04	6m 13s
Python 3.8 (Clang 12) • ubuntu-20.04	6m 21s
Python 3.8 (Release) • ubuntu-20.04	8m 39s
Python 3.8 (with Praat tests) • macos-12	19m 33s
Python 3.9 • macos-12	6m 34s
Python 3.10 • macos-12	7m 43s
Python 3.11 • macos-12	6m 27s
Python 3.12 (with Praat tests) • macos-12	25m 16s
Python 3.8 (Release) • macos-12	9m 19s
Python pypy-3.7 • macos-12	11m 42s
Python pypy-3.8 • macos-12	7m 42s
Python pypy-3.9 • macos-12	9m 41s
Python 3.8 (with Praat tests) • windows-2019	37m 35s
Python 3.9 • windows-2019	15m 2s
Python 3.10 • windows-2019	15m 23s
Python 3.11 • windows-2019	15m 21s
Python 3.12 (with Praat tests) • windows-2019	36m 30s
Python 3.12 (32-bit) • windows-2019	15m 28s
Python 3.12 (Release) • windows-2019	14m 42s
Python pypy-3.6 • windows-2019	18m 38s
Python pypy-3.7 • windows-2019	18m 43s
Python pypy-3.8 • windows-2019	15m 37s
Python pypy-3.9 • windows-2019	14m 38s
	7h 54m 27s

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