Deprecate Go 1.21 and add 1.24 (#1055)

* Deprecate Go 1.21 and add 1.24
* Update s2sx go.mod

Remove old docs, prep for new release.

zstd: Fix extra CRC written with multiple Close calls (#1017)

* zstd: Fix extra CRC written with multiple Close calls
* Also check write/flush after close.

Fixes #1016

Update README.md

Upgrade zlib to upstream (#971)

Mostly cosmetic changes.

Update README.md

tests: Rename fuzz helpers back. (#931)

s2: Fix DecodeConcurrent deadlock on errors (#925)

When DecodeConcurrent encounters an error it can lock up in some cases.

Fix and add fuzz test for stream decoding.

Fixes #920

s2: Document and test how to peek the stream for skippable blocks (#918)

Co-authored-by: Klaus Post <[email protected]>

gzhttp: Allow overriding decompression on transport (#892)

This allows getting compressed data even if `Content-Encoding` is set.

Also allows decompression even if "Accept-Encoding" was not set by this client.

gzhttp: Fix missing content type on Close (#883)

If compression had not yet been triggered in Write, be sure to detect content type on Close.

Fixes #882