refactor!: implement generic `From<T>` for `DeviceTreeNode` #333

Job	Run time
Cargo check	21s
Code formatting checks	15s
Build with each feature combination	16s
Minimal dependency versions build	20s
Clippy lint checks	14s
Machete dependencies checks	1m 7s
Build & test (stable, ubuntu-latest)	14s
Build & test (nightly, windows-latest)	3s
Build & test (1.88, ubuntu-latest)	4s
Build & test (1.88, windows-latest)	4s
Build & test (stable, windows-latest)	2s
Build & test (1.88, macos-latest)	4s
Build & test (stable, macos-latest)	4s
Build & test (nightly, ubuntu-latest)	6s
Build & test (nightly, macos-latest)	5s
Miri test	0s
	3m 19s

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