Update Rust crate bytes to 1.6.0

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
bytes	dependencies	minor	1.5.0 -> 1.6.0

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Release Notes

tokio-rs/bytes (bytes)

v1.6.0

Compare Source

Added

• Add Bytes::is_unique (#​643)

Documented

• Fix changelog typo (#​628)
• Fix some spelling mistakes (#​633)
• Typo fix (#​637)
• Fix broken links (#​639)
• Add security policy (#​649)

Internal changes

• Move comment to correct constant (#​629)
• Various cleanup (#​635)
• Simplify UninitSlice::as_uninit_slice_mut() logic (#​644)
• Use self. instead of Self:: (#​642)
• BytesMut: Assert alignment of Shared (#​652)
• Remove unnecessary namespace qualifier (#​660)
• Remove an unnecessary else branch (#​662)
• Remove unreachable else branch (#​661)
• make parameter mut in From<Vec> (#​667)
• Restore commented tests (#​665)
• Use sub instead of offset (#​668)
• Calculate original capacity only if necessary (#​666)
• set_vec_pos does not need a second parameter (#​672)
• get_vec_pos: use &self instead of &mut self (#​670)
• Refactor split_at/split_to (#​663)
• Use Iterator from the prelude (#​673)
• copy_to_bytes: Add panic section to docs (#​676)
• Remove redundant reserve call (#​674)
• Use ManuallyDrop instead of mem::forget (#​675)

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This change is 

[aaronmondal]

Reviewed 5 of 5 files at r1, all commit messages.
Reviewable status: 1 of 1 LGTMs obtained, and pending CI: Bazel Dev / ubuntu-22.04, Cargo Dev / macos-13, Remote / large-ubuntu-22.04, docker-compose-compiles-nativelink (20.04), docker-compose-compiles-nativelink (22.04), windows-2022 / stable