build(deps): bump jobserver from 0.1.33 to 0.1.34 (#38929)

Bumps [jobserver](https://github.com/rust-lang/jobserver-rs) from 0.1.33
to 0.1.34.
<details>
<summary>Commits</summary>
<ul>
<li><a
href="4bcd123ffc"><code>4bcd123</code></a>
chore: bump to 0.1.34</li>
<li><a
href="8d04a3f7e0"><code>8d04a3f</code></a>
Merge pull request <a
href="https://redirect.github.com/rust-lang/jobserver-rs/issues/113">#113</a>
from bjorn3/miri_fixes</li>
<li><a
href="5f0b099b69"><code>5f0b099</code></a>
Disable helper thread cleanup signals in miri</li>
<li><a
href="c5f6152ead"><code>c5f6152</code></a>
Fix a warning</li>
<li><a
href="588c01d1c5"><code>588c01d</code></a>
Use pipe2 libc wrapper rather than a raw syscall</li>
<li><a
href="fcb91379ba"><code>fcb9137</code></a>
Pipe2 is always available on Linux</li>
<li>See full diff in <a
href="https://github.com/rust-lang/jobserver-rs/compare/0.1.33...0.1.34">compare
view</a></li>
</ul>
</details>
<br />


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Cargo.lock

@@ -4687,9 +4687,9 @@ checksum = "8eaf4bc02d17cbdd7ff4c7438cafcdf7fb9a4613313ad11b4f8fefe7d3fa0130"
 
 [[package]]
 name = "jobserver"
-version = "0.1.33"
+version = "0.1.34"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "38f262f097c174adebe41eb73d66ae9c06b2844fb0da69969647bbddd9b0538a"
+checksum = "9afb3de4395d6b3e67a780b6de64b51c978ecf11cb9a462c66be7d4ca9039d33"
 dependencies = [
  "getrandom 0.3.3",
  "libc",