Make `ContextCompat` consistent and non-ambiguous with `WrapErr` #376

Job	Run time
Clippy (stable)	28s
Miri	1m 7s
Rustfmt (stable)	5s
Check (stable)	14s
Test Suite	2m 47s
Test Suite (ubuntu-latest)	37s
Test Suite (--no-default-features)	2m 47s
Test Suite (windows-latest)	1m 10s
Test Suite (--features track-caller)	2m 47s
Test Suite (macOS-latest)	1m 10s
Test Suite (stable)	54s
Test Suite (--features auto-install)	2m 51s
Test Suite (stable, --no-default-features)	28s
Test Suite (stable, --features track-caller)	44s
Test Suite (stable, --features pyo3)	32s
Test Suite (stable, --features auto-install)	29s
Test Suite (stable, --all-features)	28s
Test Suite (beta)	36s
Test Suite (beta, --no-default-features)	35s
Test Suite (beta, --features track-caller)	34s
Test Suite (beta, --features pyo3)	37s
Test Suite (beta, --features auto-install)	35s
Test Suite (beta, --all-features)	35s
Test Suite (nightly)	44s
Test Suite (nightly, --no-default-features)	46s
Test Suite (nightly, --features track-caller)	43s
Test Suite (nightly, --features pyo3)	45s
Test Suite (nightly, --features auto-install)	45s
Test Suite (nightly, --all-features)	46s
	27m 39s

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