Adjust release-plz config to use existing crates.io token #880

Job	Run time
Preflight docs.rs build	31s
Clippy	44s
Enforce Rust code format	12s
License / vulnerability audit (advisories)	17s
License / vulnerability audit (bans licenses sources)	17s
Preflight crate publish (ubuntu-latest, stable)	46s
Unit tests with default features disabled (windows-latest)	2m 39s
Unit tests with default features disabled (macos-latest)	1m 4s
Unit tests with minimum versions of direct dependencies (windows-latest)	2m 19s
Unit tests with default features disabled (ubuntu-latest)	1m 3s
Unit tests (windows-latest, stable)	3m 2s
Unit tests (aarch64-unknown-linux-gnu, stable)	1m 51s
Unit tests with minimum versions of direct dependencies (macos-latest)	1m 11s
Unit tests (windows-latest, 1.70.0)	2m 18s
Unit tests (aarch64-unknown-linux-gnu, 1.70.0)	2m 20s
Unit tests with minimum versions of direct dependencies (ubuntu-latest)	49s
Unit tests (macos-latest, stable)	1m 19s
Check for unused dependencies	48s
Unit tests (macos-latest, 1.70.0)	1m 25s
Unit tests (macos-13-xlarge, stable)	1m 5s
ReadXMP example	41s
Unit tests (macos-13-xlarge, 1.70.0)	1m 14s
Unit tests (ubuntu-latest, stable)	1m 12s
Unit tests (ubuntu-latest, 1.70.0)	1m 29s
	30m 36s

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