doc: fix toml type of verbosity options in API reference

[bluetech]

Fix #13904.

[nicoddemus]

Perhaps the correct fix would be to change the option type to int?

pytest/src/_pytest/config/__init__.py

Line 1957 in adb3658

type="string",

Seems like it was just an oversight, unnoticed because of how ini options are treated.

[bluetech]

Was my first thought, however I think it's a string because it needs to support "auto".

If in the future we support type expressions we can make it int | Literal["auto"] but until then we only have "string".

[nicoddemus]

Ahh right, missed/forgot this bit:

pytest/src/_pytest/config/__init__.py

Lines 1933 to 1935 in adb3658

	level = self.getini(ini_name)
	if level == Config._VERBOSITY_INI_DEFAULT:
	return global_level

[patchback]

Backport to 9.0.x: 💚 backport PR created

✅ Backport PR branch: patchback/backports/9.0.x/e82651074d18a9a905d3beefb62bd7eb8196b6cd/pr-13906

Backported as #13915

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