fix: make Parity TraceResults output optional (#1102) #5

Job	Run time
cfg-check	1m 16s
docs	2m 1s
clippy	1m 53s
doctest	3m 26s
feature-checks	7m 3s
fmt	11s
no-std	38s
test ubuntu-latest stable --no-default-features	3m 17s
wasm-unknown	2m 28s
wasm-wasi	3m 19s
test ubuntu-latest stable	3m 6s
test ubuntu-latest nightly --no-default-features	2m 38s
test ubuntu-latest nightly	2m 49s
test ubuntu-latest 1.76 --no-default-features	2m 6s
test ubuntu-latest 1.76	1m 57s
test windows-latest stable --no-default-features	5m 49s
test windows-latest stable	7m 53s
test windows-latest nightly --no-default-features	6m 40s
test windows-latest nightly	6m 53s
test windows-latest 1.76 --no-default-features	5m 13s
test windows-latest 1.76	5m 9s
	1h 15m 45s

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