Improved how Strings are serialized into Data objects #6

Job	Run time
Swift 6 Language Mode / Swift 6 language mode	1m 19s
Unit tests / Unit tests / Linux (5.8)	27s
Unit tests / Unit tests / Linux (5.9)	1m 18s
Unit tests / Unit tests / Linux (5.10)	1m 10s
Unit tests / Unit tests / Linux (nightly-6.0)	1m 34s
Unit tests / Unit tests / Linux (nightly-main)	2m 20s
Soundness / Documentation check	0s
Soundness / API breakage check	1m 54s
Soundness / Broken symlinks check	3s
Soundness / License headers check	0s
Soundness / Unacceptable language check	2s
Soundness / Format check	0s
Soundness / Shell check	0s
	10m 7s

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