Make `ContextCompat` consistent and non-ambiguous with `WrapErr` #391

Job	Run time
Test Suite	57s
Test Suite (ubuntu-latest)	31s
Check (stable)	17s
Test Suite (windows-latest)	1m 51s
Clippy (stable)	34s
Test Suite (macOS-latest)	56s
Test Suite (--no-default-features)	1m 6s
Rustfmt (stable)	4s
Miri	1m 4s
Test Suite (--features track-caller)	1m 2s
Test Suite (stable)	29s
Test Suite (--features auto-install)	59s
Test Suite (stable, --no-default-features)	30s
Test Suite (stable, --features track-caller)	34s
Test Suite (stable, --features pyo3)	28s
Test Suite (stable, --features auto-install)	27s
Test Suite (stable, --all-features)	28s
Test Suite (beta)	36s
Test Suite (beta, --no-default-features)	36s
Test Suite (beta, --features track-caller)	34s
Test Suite (beta, --features pyo3)	37s
Test Suite (beta, --features auto-install)	34s
Test Suite (beta, --all-features)	35s
Test Suite (nightly)	1m 0s
Test Suite (nightly, --no-default-features)	49s
Test Suite (nightly, --features track-caller)	43s
Test Suite (nightly, --features pyo3)	45s
Test Suite (nightly, --features auto-install)	46s
Test Suite (nightly, --all-features)	48s
	20m 40s

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