feat: zero-copy string access via ValueView and allocation-reuse APIs #7114

Job	Run time
asan aarch64-apple-darwin	15m 35s
release aarch64-pc-windows-msvc	11m 41s
debug x86_64-apple-darwin	26m 38s
release x86_64-apple-darwin ptrcomp	12m 35s
debug aarch64-apple-darwin ptrcomp	12m 22s
debug x86_64-unknown-linux-gnu ptrcomp	14m 47s
debug aarch64-unknown-linux-gnu	28m 2s
debug x86_64-unknown-linux-gnu	14m 26s
release aarch64-unknown-linux-gnu	14m 51s
release x86_64-unknown-linux-gnu ptrcomp	7m 47s
release x86_64-apple-darwin	12m 44s
release aarch64-apple-darwin ptrcomp	10m 40s
debug aarch64-apple-darwin	11m 31s
debug x86_64-apple-darwin ptrcomp	17m 13s
release aarch64-apple-darwin	8m 50s
release x86_64-pc-windows-msvc	9m 21s
release x86_64-unknown-linux-gnu	8m 7s
test aarch64-pc-windows-msvc	4m 16s
publish	-1s
	4h 1m 25s

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