update: bump lopdf from 0.31.0 to 0.34.0 #4032

Job	Run time
Enforce Rust code format	11s
License / vulnerability audit (advisories)	27s
Default features build	2m 12s
License / vulnerability audit (bans licenses sources)	23s
Clippy	2m 49s
Preflight docs.rs build	2m 3s
Doc tests (requires nightly Rust) (windows-latest)	11m 29s
Unit tests with minimum versions of direct dependencies (windows-latest)	9m 47s
Doc tests (requires nightly Rust) (macos-latest)	3m 0s
Unit tests with minimum versions of direct dependencies (macos-latest)	2m 0s
Doc tests (requires nightly Rust) (ubuntu-latest)	3m 36s
Unit tests with minimum versions of direct dependencies (ubuntu-latest)	3m 20s
Unit tests (windows-latest, stable)	9m 47s
Unit tests (c2patool) (windows-latest, stable)	11m 3s
Unit tests (windows-latest, 1.81.0)	10m 15s
Unit tests (c2patool) (macos-latest, stable)	1m 55s
Unit tests (aarch64-unknown-linux-gnu, stable)	6m 4s
Unit tests (macos-latest, stable)	1m 31s
Unit tests (c2patool) (ubuntu-latest, stable)	3m 40s
Unit tests (WASM)	2m 21s
Unit tests (aarch64-unknown-linux-gnu, 1.81.0)	6m 35s
Unit tests (macos-latest, 1.81.0)	1m 21s
Unit tests (ubuntu-latest, stable)	3m 15s
Unit tests (ubuntu-latest, 1.81.0)	3m 29s
Check for unused dependencies	2m 22s
	1h 44m 55s

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