Add `auto` option for `config.use_ansi_coloring` (#14647) #631

Job	Run time
fmt-clippy (windows-latest)	10m 17s
plugins (windows-latest)	13m 34s
std-lib-and-python-virtualenv (ubuntu-20.04, py)	4m 3s
fmt-clippy (macos-13)	5m 28s
plugins (macos-13)	9m 20s
std-lib-and-python-virtualenv (macos-latest, py)	4m 3s
fmt-clippy (ubuntu-20.04)	2m 59s
plugins (ubuntu-20.04)	6m 30s
tests (windows-latest)	14m 44s
std-lib-and-python-virtualenv (windows-latest, py)	12m 42s
tests (macos-latest)	5m 6s
tests (ubuntu-20.04)	6m 39s
Build WASM	2m 12s
Clippy WASM	2m 9s
	1h 39m 46s

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