Bump lz4-sys from 1.9.3 to 1.9.4

[dependabot[bot]]

Bumps lz4-sys from 1.9.3 to 1.9.4.

Changelog

Sourced from lz4-sys's changelog.

1.24.0:

• Update to lz4 1.9.4 (lz4-sys 1.9.4) - this fixes CVE-2021-3520, which was a security vulnerability in the core lz4 library
• export the include directory of lz4 from build.rs

1.23.3 (March 5, 2022):

• Update lz4 to 1.9.3
• Add [de]compress_to_buffer to block API to allow reusing buffers (#16)
• Windows static lib support
• Support favor_dec_speed
• Misc small fixes

1.23.2:

• Update lz4 to 1.9.2
• Remove dependency on skeptic (replace with build-dependency docmatic for README testing)
• Move to Rust 2018 edition

1.23.0:

• Update lz4 to v1.8.2
• Add lz4 block mode api

1.22.0:

• Update lz4 to v1.8.0
• Remove lz4 redundant dependency to gcc #22 (thanks to Xidorn Quan)

1.21.1:

• Fix always rebuild issue #21

1.21.0:

• Fix smallest 11-byte stream decoding (thanks to Niklas Hambüchen)
• Update lz4 to v1.7.5

1.20.0:

• Split out separate sys package #16 (thanks to Thijs Cadier)

1.19.173:

• Update lz4 to v1.7.3

1.19.131:

• Update dependencies for correct work with change build environmet via rustup override

1.18.131:

• Implemented Send for Encoder/Decoder #15 (thanks to Maxime Lenoir)

... (truncated)

Commits

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