chore: Tweak changelog body format #869

Job	Run time
Unit tests (windows-latest, stable)	2m 53s
Unit tests (windows-latest, 1.70.0)	2m 24s
Unit tests (macos-latest, stable)	1m 14s
Enforce Rust code format	14s
Unit tests (macos-latest, 1.70.0)	1m 25s
Unit tests (macos-13-xlarge, stable)	1m 4s
Unit tests (macos-13-xlarge, 1.70.0)	1m 13s
Clippy	1m 2s
Unit tests (ubuntu-latest, stable)	1m 2s
Unit tests (ubuntu-latest, 1.70.0)	1m 21s
Preflight crate publish (ubuntu-latest, stable)	42s
Unit tests with default features disabled (windows-latest)	3m 4s
Unit tests with minimum versions of direct dependencies (windows-latest)	2m 3s
Unit tests with default features disabled (macos-latest)	1m 18s
Unit tests with minimum versions of direct dependencies (macos-latest)	1m 5s
Unit tests with default features disabled (ubuntu-latest)	54s
Unit tests with minimum versions of direct dependencies (ubuntu-latest)	50s
Unit tests (aarch64-unknown-linux-gnu, stable)	1m 58s
Unit tests (aarch64-unknown-linux-gnu, 1.70.0)	2m 15s
License / vulnerability audit (advisories)	16s
License / vulnerability audit (bans licenses sources)	18s
Preflight docs.rs build	20s
ReadXMP example	46s
Check for unused dependencies	1m 4s
Ensure (MAJOR) tag is used when making an API breaking change	45s
	31m 30s

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