Bump bootsnap from 1.18.3 to 1.18.4 (#600)

Bumps [bootsnap](https://github.com/Shopify/bootsnap) from 1.18.3 to
1.18.4.
<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>1.18.4</h1>
<ul>
<li>Allow using bootsnap without bundler. See <a
href="https://redirect.github.com/Shopify/bootsnap/issues/488">#488</a>.</li>
<li>Fix startup failure if the cache directory points to a broken
symlink.</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/Shopify/bootsnap/commit/cae219a7aa57370951e36c010db6e8e2408543e7"><code>cae219a</code></a>
Release 1.18.4</li>
<li><a
href="https://github.com/Shopify/bootsnap/commit/407bdefaf93cef5795eb1db41a3ccc8606e9bb9e"><code>407bdef</code></a>
Merge pull request <a
href="https://redirect.github.com/Shopify/bootsnap/issues/489">#489</a>
from Shopify/fix-load-error</li>
<li><a
href="https://github.com/Shopify/bootsnap/commit/7afa95114edcc3af163a24fad74071e43ee33b57"><code>7afa951</code></a>
Fix bootsnap setup in environments without bundler</li>
<li><a
href="https://github.com/Shopify/bootsnap/commit/c5513d977f0fec869a9d07f56485758163a44c04"><code>c5513d9</code></a>
Merge pull request <a
href="https://redirect.github.com/Shopify/bootsnap/issues/487">#487</a>
from Uaitt/update-gh-action-versions</li>
<li><a
href="https://github.com/Shopify/bootsnap/commit/65691caae25f1f783fb565a166ff63e50776a539"><code>65691ca</code></a>
Update GitHub actions versions</li>
<li><a
href="https://github.com/Shopify/bootsnap/commit/156b8c979eebabd8bdfe921295500a3e9308a184"><code>156b8c9</code></a>
Merge pull request <a
href="https://redirect.github.com/Shopify/bootsnap/issues/485">#485</a>
from Uaitt/changelog-typo</li>
<li><a
href="https://github.com/Shopify/bootsnap/commit/e76fe383d17dbbb321345591532527f486183519"><code>e76fe38</code></a>
Merge pull request <a
href="https://redirect.github.com/Shopify/bootsnap/issues/486">#486</a>
from Uaitt/correct-rubocop-offenses</li>
<li><a
href="https://github.com/Shopify/bootsnap/commit/9ec8d705eec21691005de2e814873278fc419d48"><code>9ec8d70</code></a>
Correct Rubocop offenses</li>
<li><a
href="https://github.com/Shopify/bootsnap/commit/47ad13424d5beffd7d7b373e0c379013ef93e6bf"><code>47ad134</code></a>
Correct a typo present in the CHANGELOG</li>
<li><a
href="https://github.com/Shopify/bootsnap/commit/f627992c526423943115845bd5bfdfc01bd2ae3c"><code>f627992</code></a>
Add --version flag</li>
<li>Additional commits viewable in <a
href="https://github.com/Shopify/bootsnap/compare/v1.18.3...v1.18.4">compare
view</a></li>
</ul>
</details>
<br />


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</details>

Author: rsmithlal

Gemfile.lock

@@ -154,7 +154,7 @@ GEM
     bindex (0.8.1)
     binding_of_caller (1.0.1)
       debug_inspector (>= 1.2.0)
-    bootsnap (1.18.3)
+    bootsnap (1.18.4)
       msgpack (~> 1.2)
     bootstrap (5.3.3)
       autoprefixer-rails (>= 9.1.0)