build(deps): bump bootsnap from 1.7.2 to 1.7.3 (#239)

Bumps [bootsnap](https://github.com/Shopify/bootsnap) from 1.7.2 to 1.7.3.
- [Release notes](https://github.com/Shopify/bootsnap/releases)
- [Changelog](https://github.com/Shopify/bootsnap/blob/master/CHANGELOG.md)
- [Commits](Shopify/bootsnap@v1.7.2...v1.7.3)

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Gemfile.lock

@@ -109,7 +109,7 @@ GEM
     binding_ninja (0.2.3)
     binding_of_caller (1.0.0)
       debug_inspector (>= 0.0.1)
-    bootsnap (1.7.2)
+    bootsnap (1.7.3)
       msgpack (~> 1.0)
     brakeman (5.0.0)
     buftok (0.2.0)