tests

Misc. repository cleanup #111

Job	Run time
Run Tests (stable, ubuntu-latest, stable)	27s
Run Tests (stable, ubuntu-latest, 1.67.1)	43s
Linux Examples (stable, stable)	30s
Run Tests (stable, windows-latest, stable)	20s
Linux Examples (stable, 1.67.1)	1m 11s
MSRV Compat (ubuntu-latest)	58s
Optional Lints	10s
Linux Examples (beta, stable)	15s
Run Tests (stable, windows-latest, 1.67.1)	27s
MSRV Compat (windows-latest)	1m 14s
Linux Examples (beta, 1.67.1)	1m 12s
Run Tests (beta, ubuntu-latest, stable)	1m 1s
Run Tests (beta, ubuntu-latest, 1.67.1)	1m 5s
Run Tests (beta, windows-latest, stable)	31s
Run Tests (beta, windows-latest, 1.67.1)	53s
	10m 57s

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