Populate git submodules before running release-plz #882

Job	Run time
Enforce Rust code format	12s
Clippy	43s
License / vulnerability audit (advisories)	16s
Preflight docs.rs build	20s
License / vulnerability audit (bans licenses sources)	19s
Preflight crate publish (ubuntu-latest, stable)	45s
Unit tests with default features disabled (windows-latest)	1m 35s
ReadXMP example	53s
Unit tests with minimum versions of direct dependencies (windows-latest)	1m 51s
Unit tests with default features disabled (macos-latest)	1m 4s
Unit tests with minimum versions of direct dependencies (macos-latest)	1m 6s
Unit tests with default features disabled (ubuntu-latest)	53s
Unit tests with minimum versions of direct dependencies (ubuntu-latest)	50s
Unit tests (windows-latest, stable)	3m 16s
Unit tests (aarch64-unknown-linux-gnu, stable)	1m 58s
Unit tests (windows-latest, 1.70.0)	2m 0s
Unit tests (aarch64-unknown-linux-gnu, 1.70.0)	2m 8s
Unit tests (macos-latest, stable)	1m 32s
Check for unused dependencies	48s
Unit tests (macos-latest, 1.70.0)	1m 43s
Unit tests (macos-13-xlarge, stable)	1m 2s
Unit tests (macos-13-xlarge, 1.70.0)	1m 12s
Unit tests (ubuntu-latest, stable)	1m 0s
Unit tests (ubuntu-latest, 1.70.0)	1m 17s
	28m 43s

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