Allow configure `fmt::Layer` better (#353) #833

Job	Run time
clippy	44s
feature (<none>)	38s
rustdoc (cucumber-codegen)	22s
feature (macros)	43s
MSRV (1.83.0, cucumber-codegen, ubuntu)	59s
rustdoc (cucumber)	55s
feature (timestamps)	38s
MSRV (1.83.0, cucumber-codegen, macOS)	1m 19s
rustfmt	13s
feature (output-json)	41s
MSRV (1.83.0, cucumber, ubuntu)	2m 58s
feature (output-junit)	40s
MSRV (1.83.0, cucumber, macOS)	2m 52s
MSRV (1.83.0, cucumber, windows)	4m 10s
test (cucumber-codegen, stable, ubuntu)	55s
test (Book, ubuntu)	5m 8s
feature (libtest)	40s
test (cucumber-codegen, stable, macOS)	58s
test (Book, macOS)	5m 57s
test (cucumber-codegen, stable, windows)	3m 4s
test (Book, windows)	7m 39s
test (cucumber-codegen, beta, ubuntu)	52s
test (cucumber-codegen, beta, macOS)	47s
test (cucumber-codegen, beta, windows)	1m 52s
test (cucumber-codegen, nightly, ubuntu)	1m 22s
feature (tracing)	39s
test (cucumber-codegen, nightly, macOS)	1m 17s
test (cucumber-codegen, nightly, windows)	3m 22s
test (cucumber, stable, ubuntu)	2m 54s
test (cucumber, stable, macOS)	2m 56s
test (cucumber, stable, windows)	5m 30s
test (cucumber, beta, ubuntu)	2m 53s
test (cucumber, beta, macOS)	3m 0s
test (cucumber, beta, windows)	3m 58s
test (cucumber, nightly, ubuntu)	3m 18s
test (cucumber, nightly, macOS)	3m 50s
test (cucumber, nightly, windows)	4m 56s
pr	1s
deploy (Book)	0s
release (GitHub)	0s
publish (crates.io)	0s
	1h 25m 40s

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