[chore(cargo)](deps): Bump linux-raw-sys from 0.4.13 to 0.6.4 (#599)

Bumps [linux-raw-sys](https://github.com/sunfishcode/linux-raw-sys) from
0.4.13 to 0.6.4.
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/sunfishcode/linux-raw-sys/commit/05aa2db70b7dd3bedbba91da0cfe9312ed69b1b8"><code>05aa2db</code></a>
chore: Release linux-raw-sys version 0.6.4</li>
<li><a
href="https://github.com/sunfishcode/linux-raw-sys/commit/783bd07b0253116a04d8b29cfcc05566c4a00fcc"><code>783bd07</code></a>
Add support for packet MMAP (<a
href="https://redirect.github.com/sunfishcode/linux-raw-sys/issues/103">#103</a>)
(<a
href="https://redirect.github.com/sunfishcode/linux-raw-sys/issues/104">#104</a>)</li>
<li><a
href="https://github.com/sunfishcode/linux-raw-sys/commit/724e0ece47ee58d26f817aa219ea7b49ccd36223"><code>724e0ec</code></a>
update ioctl of csky (<a
href="https://redirect.github.com/sunfishcode/linux-raw-sys/issues/105">#105</a>)</li>
<li><a
href="https://github.com/sunfishcode/linux-raw-sys/commit/ebdc17e279e193992002b7e865f17e8de12b7519"><code>ebdc17e</code></a>
chore: Release linux-raw-sys version 0.6.3</li>
<li><a
href="https://github.com/sunfishcode/linux-raw-sys/commit/2a486fddf3097ff62113f88acd4f250a295380c3"><code>2a486fd</code></a>
Add missing features to docs.rs metadata (<a
href="https://redirect.github.com/sunfishcode/linux-raw-sys/issues/102">#102</a>)</li>
<li><a
href="https://github.com/sunfishcode/linux-raw-sys/commit/aed495f0aef1a11704063df87a9dd255bfc76c26"><code>aed495f</code></a>
chore: Release linux-raw-sys version 0.6.2</li>
<li><a
href="https://github.com/sunfishcode/linux-raw-sys/commit/46106609c3364b58c6decfa8d04b238adb806ef3"><code>4610660</code></a>
Regenerate generated files.</li>
<li><a
href="https://github.com/sunfishcode/linux-raw-sys/commit/eb456fc7f48b1a38d194b7c92f1bfceee7a8b79a"><code>eb456fc</code></a>
Add missing <code>AF_*</code> definitions and AF_XDP header and structs
to v0.4.11 (<a
href="https://redirect.github.com/sunfishcode/linux-raw-sys/issues/98">#98</a>)</li>
<li><a
href="https://github.com/sunfishcode/linux-raw-sys/commit/571cb37be3d139841681a8b4b24e2ea7c04afd3c"><code>571cb37</code></a>
Regenerate generated files.</li>
<li><a
href="https://github.com/sunfishcode/linux-raw-sys/commit/6f86540e73bd45c9d13730ba0121d1820db0eeee"><code>6f86540</code></a>
Add support for riscv32 (<a
href="https://redirect.github.com/sunfishcode/linux-raw-sys/issues/95">#95</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/sunfishcode/linux-raw-sys/compare/v0.4.13...v0.6.4">compare
view</a></li>
</ul>
</details>
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