(MINOR) Add new API function `XmpFile::try_close` which will report any error encountered when closing a file #837

Job	Run time
Unit tests (windows-latest, stable)	2m 42s
Unit tests (windows-latest, 1.70.0)	2m 7s
Unit tests with minimum versions of direct dependencies (windows-latest)	1m 59s
Unit tests (macos-latest, stable)	1m 21s
Unit tests (aarch64-unknown-linux-gnu, stable)	1m 45s
Unit tests with minimum versions of direct dependencies (macos-latest)	1m 31s
Unit tests with default features disabled (windows-latest)	1m 34s
Unit tests (macos-latest, 1.70.0)	1m 32s
Unit tests (aarch64-unknown-linux-gnu, 1.70.0)	2m 8s
Unit tests with minimum versions of direct dependencies (ubuntu-latest)	1m 4s
Unit tests with default features disabled (macos-latest)	1m 32s
Unit tests (macos-13-xlarge, stable)	1m 28s
Unit tests with default features disabled (ubuntu-latest)	1m 1s
Unit tests (macos-13-xlarge, 1.70.0)	1m 26s
Unit tests (ubuntu-latest, stable)	1m 5s
Enforce Rust code format	13s
Unit tests (ubuntu-latest, 1.70.0)	1m 21s
License / vulnerability audit (advisories)	22s
Clippy	1m 9s
License / vulnerability audit (bans licenses sources)	18s
Preflight docs.rs build	22s
Preflight crate publish (ubuntu-latest, stable)	59s
ReadXMP example	58s
Check for unused dependencies	1m 6s
Ensure (MAJOR) tag is used when making an API breaking change	4m 4s
	35m 7s

Provide feedback