(MINOR) XmpMeta can now optionally format itself using Rust-style formatting #807

Job	Run time
Unit tests with minimum versions of direct dependencies (windows-latest)	1m 39s
Unit tests with minimum versions of direct dependencies (macos-latest)	1m 5s
Unit tests (aarch64-unknown-linux-gnu, stable)	1m 37s
Unit tests with default features disabled (windows-latest)	1m 53s
Unit tests with minimum versions of direct dependencies (ubuntu-latest)	51s
Unit tests (aarch64-unknown-linux-gnu, 1.70.0)	1m 42s
Unit tests with default features disabled (macos-latest)	50s
Unit tests with default features disabled (ubuntu-latest)	38s
Enforce Rust code format	10s
License / vulnerability audit (advisories)	17s
Clippy	57s
Preflight docs.rs build	23s
License / vulnerability audit (bans licenses sources)	18s
Preflight crate publish (ubuntu-latest, stable)	12s
Unit tests (windows-latest, stable)	2m 6s
Check for unused dependencies	45s
Unit tests (windows-latest, 1.70.0)	1m 26s
ReadXMP example	40s
Unit tests (macos-latest, stable)	1m 2s
Unit tests (macos-latest, 1.70.0)	1m 8s
Ensure (MAJOR) tag is used when making an API breaking change	54s
Unit tests (macos-13-xlarge, stable)	49s
Unit tests (macos-13-xlarge, 1.70.0)	59s
Unit tests (ubuntu-latest, stable)	49s
Unit tests (ubuntu-latest, 1.70.0)	48s
	23m 58s

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