Remove the `encoding` parameter #326

Job	Run time
test (ubuntu-20.04, 3.9)	43s
test (ubuntu-20.04, 3.10)	37s
test (ubuntu-20.04, 3.11)	26s
test (ubuntu-20.04, 3.12)	32s
test (ubuntu-20.04, 3.13)	48s
test (ubuntu-20.04, pypy3.9)	1m 52s
test (ubuntu-20.04, pypy3.10)	45s
test (ubuntu-22.04, 3.9)	25s
test (ubuntu-22.04, 3.10)	31s
test (ubuntu-22.04, 3.11)	32s
test (ubuntu-22.04, 3.12)	26s
test (ubuntu-22.04, 3.13)	50s
test (ubuntu-22.04, pypy3.9)	1m 17s
test (ubuntu-22.04, pypy3.10)	52s
test (macos-13, 3.9)	1m 16s
test (macos-13, 3.10)	49s
test (macos-13, 3.11)	1m 0s
test (macos-13, 3.12)	55s
test (macos-13, 3.13)	1m 4s
test (macos-13, pypy3.9)	1m 10s
test (macos-13, pypy3.10)	59s
test (windows-2022, 3.9)	1m 57s
test (windows-2022, 3.10)	1m 13s
test (windows-2022, 3.11)	2m 9s
test (windows-2022, 3.12)	2m 18s
test (windows-2022, 3.13)	3m 5s
test (windows-2022, pypy3.9)	3m 45s
test (windows-2022, pypy3.10)	2m 13s
builder_pypandoc	11s
builder_pypandoc_binary (macos-14)	1m 19s
builder_pypandoc_binary (windows-2022)	1m 53s
builder_pypandoc_binary (ubuntu-22.04)	6m 20s
publisher_release	0s
publisher_latest	0s
	44m 12s

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