(MINOR) Add new API function `XmpFile::try_close` which will report a… #844

Job	Run time
Unit tests with minimum versions of direct dependencies (windows-latest)	1m 36s
Unit tests with minimum versions of direct dependencies (macos-latest)	1m 15s
Unit tests with minimum versions of direct dependencies (ubuntu-latest)	48s
Preflight crate publish (ubuntu-latest, stable)	47s
Enforce Rust code format	13s
Clippy	42s
Unit tests with default features disabled (windows-latest)	1m 31s
Unit tests with default features disabled (macos-latest)	1m 14s
Unit tests with default features disabled (ubuntu-latest)	50s
Unit tests (windows-latest, stable)	2m 29s
Unit tests (aarch64-unknown-linux-gnu, stable)	1m 46s
Unit tests (windows-latest, 1.70.0)	2m 1s
Unit tests (aarch64-unknown-linux-gnu, 1.70.0)	2m 10s
Unit tests (macos-latest, stable)	1m 34s
License / vulnerability audit (advisories)	21s
License / vulnerability audit (bans licenses sources)	16s
Unit tests (macos-latest, 1.70.0)	1m 19s
Preflight docs.rs build	21s
Unit tests (macos-13-xlarge, stable)	1m 0s
Unit tests (macos-13-xlarge, 1.70.0)	1m 4s
ReadXMP example	45s
Check for unused dependencies	51s
Unit tests (ubuntu-latest, stable)	56s
Unit tests (ubuntu-latest, 1.70.0)	1m 7s
Ensure (MAJOR) tag is used when making an API breaking change	4m 5s
	31m 1s

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