Bump bootsnap from 1.4.8 to 1.4.9

Bumps [bootsnap](https://github.com/Shopify/bootsnap) from 1.4.8 to 1.4.9.
- [Release notes](https://github.com/Shopify/bootsnap/releases)
- [Changelog](https://github.com/Shopify/bootsnap/blob/master/CHANGELOG.md)
- [Commits](Shopify/bootsnap@v1.4.8...v1.4.9)

Signed-off-by: dependabot[bot] <support@github.com>

Gemfile.lock

@@ -104,7 +104,7 @@ GEM
     bigdecimal (1.1.0)
     binding_of_caller (0.8.0)
       debug_inspector (>= 0.0.1)
-    bootsnap (1.4.8)
+    bootsnap (1.4.9)
       msgpack (~> 1.0)
     bootstrap (4.5.2)
       autoprefixer-rails (>= 9.1.0)