Fix TOML configuration errors #83

Job	Run time
tox env type on ubuntu-latest	1m 0s
test 3.13 on ubuntu-latest	28s
tox env type on windows-latest	2m 7s
test 3.13 on windows-latest	1m 24s
tox env dev on ubuntu-latest	35s
test 3.13 on macos-latest	34s
tox env dev on windows-latest	1m 28s
test 3.12 on ubuntu-latest	24s
tox env docs on ubuntu-latest	4m 38s
test 3.12 on windows-latest	1m 3s
tox env pkg_meta on ubuntu-latest	20s
test 3.12 on macos-latest	25s
tox env pkg_meta on windows-latest	50s
test 3.11 on ubuntu-latest	26s
test 3.11 on windows-latest	53s
test 3.11 on macos-latest	30s
test 3.10 on ubuntu-latest	22s
test 3.10 on windows-latest	1m 2s
test 3.10 on macos-latest	24s
test 3.9 on ubuntu-latest	27s
test 3.9 on windows-latest	54s
test 3.9 on macos-latest	25s
test 3.8 on ubuntu-latest	27s
test 3.8 on windows-latest	57s
test 3.8 on macos-latest	38s
	22m 41s

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