Build(deps): Bump bootsnap from 1.18.4 to 1.18.6 (#841)

Bumps [bootsnap](https://github.com/Shopify/bootsnap) from 1.18.4 to
1.18.6.
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/Shopify/bootsnap/blob/main/CHANGELOG.md">bootsnap's
changelog</a>.</em></p>
<blockquote>
<h1>Unreleased</h1>
<ul>
<li>Fix cgroup CPU limits detection in CLI.</li>
</ul>
<h1>1.18.5</h1>
<ul>
<li>Attempt to detect a QEMU bug that can cause <code>bootsnap
precompile</code> to hang forever when building ARM64 docker images
from x86_64 machines. See <a
href="https://redirect.github.com/Shopify/bootsnap/issues/495">#495</a>.</li>
<li>Improve CLI to detect cgroup CPU limits and avoid spawning too many
worker processes.</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/Shopify/bootsnap/commit/86efe7df5e3b19b0ba550206a9e03a5c6499d3b0"><code>86efe7d</code></a>
Release 1.18.6</li>
<li><a
href="https://github.com/Shopify/bootsnap/commit/dc98453267575068a3aac65b8653382acd2f84a7"><code>dc98453</code></a>
Fix cgroup CPU limits detection in CLI.</li>
<li><a
href="https://github.com/Shopify/bootsnap/commit/11dbc37f60e6575795cd2295a2494a0bd5e488b3"><code>11dbc37</code></a>
Release 1.18.5</li>
<li><a
href="https://github.com/Shopify/bootsnap/commit/dcd9327587f02f08e8313ff4fc163f04aaaab7e8"><code>dcd9327</code></a>
Merge pull request <a
href="https://redirect.github.com/Shopify/bootsnap/issues/501">#501</a>
from Shopify/improve-parallelism</li>
<li><a
href="https://github.com/Shopify/bootsnap/commit/abe4ec3aa9d80f2d8b7a3c7d03bf692d39044dce"><code>abe4ec3</code></a>
Bump bundler cache on CI</li>
<li><a
href="https://github.com/Shopify/bootsnap/commit/d603b704ab1b8f14ffe05ba6e7893aef4021fe3f"><code>d603b70</code></a>
Attempt to detect QEMU hangs</li>
<li><a
href="https://github.com/Shopify/bootsnap/commit/5e878001382765e0b291d19b9faa6c1dfd88ef84"><code>5e87800</code></a>
cli: improve automatic parallelism to respect cgroup limits</li>
<li><a
href="https://github.com/Shopify/bootsnap/commit/0dc269dbf05edad1022cb8e050f9a1e429369077"><code>0dc269d</code></a>
Merge pull request <a
href="https://redirect.github.com/Shopify/bootsnap/issues/499">#499</a>
from p8/docs/link-to-official-docs</li>
<li><a
href="https://github.com/Shopify/bootsnap/commit/5fb9098bd30e5f7bf86e33027c8993fe49b6a5e8"><code>5fb9098</code></a>
Link to official Ruby documentation</li>
<li><a
href="https://github.com/Shopify/bootsnap/commit/252cf48f6fe56f7854bd1b6bcbc3b6692fc8f8f4"><code>252cf48</code></a>
Add config/ dir to precompile example</li>
<li>See full diff in <a
href="https://github.com/Shopify/bootsnap/compare/v1.18.4...v1.18.6">compare
view</a></li>
</ul>
</details>
<br />


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</details>

Author: rsmithlal

Gemfile.lock

@@ -198,7 +198,7 @@ GEM
     bindex (0.8.1)
     binding_of_caller (1.0.1)
       debug_inspector (>= 1.2.0)
-    bootsnap (1.18.4)
+    bootsnap (1.18.6)
       msgpack (~> 1.2)
     bootstrap (5.3.5)
       popper_js (>= 2.11.8, < 3)
@@ -455,7 +455,7 @@ GEM
     mobility-actiontext (1.1.1)
       actiontext (>= 6.0)
       mobility (~> 1.2)
-    msgpack (1.7.2)
+    msgpack (1.8.0)
     multi_json (1.15.0)
     multipart-post (2.4.1)
     mutex_m (0.3.0)