Make `ContextCompat` consistent and non-ambiguous with `WrapErr` #458

Job	Run time
Clippy (stable)	23s
Check (stable)	12s
Rustfmt (stable)	14s
Miri	1m 25s
Test Suite (stable)	59s
Test Suite	2m 38s
Test Suite (stable, --no-default-features)	57s
Test Suite (ubuntu-latest)	1m 1s
Test Suite (--no-default-features)	2m 31s
Test Suite (windows-latest)	1m 59s
Test Suite (stable, --no-default-features --features track-caller)	1m 0s
Test Suite (--no-default-features --features track-caller)	2m 35s
Test Suite (macOS-latest)	53s
Test Suite (stable, --no-default-features --features auto-install)	55s
Test Suite (--no-default-features --features auto-install)	2m 30s
Test Suite (stable, --features pyo3)	1m 0s
Test Suite (stable, --all-features)	1m 5s
Test Suite (beta)	1m 5s
Test Suite (beta, --no-default-features)	1m 2s
Test Suite (beta, --no-default-features --features track-caller)	1m 0s
Test Suite (beta, --no-default-features --features auto-install)	57s
Test Suite (beta, --features pyo3)	1m 9s
Test Suite (beta, --all-features)	1m 11s
Test Suite (nightly)	1m 6s
Test Suite (nightly, --no-default-features)	1m 3s
Test Suite (nightly, --no-default-features --features track-caller)	1m 3s
Test Suite (nightly, --no-default-features --features auto-install)	1m 6s
Test Suite (nightly, --features pyo3)	1m 11s
Test Suite (nightly, --all-features)	1m 13s
	35m 23s

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