bump rack from 3.1.15 to 3.1.16 (#80)

---
updated-dependencies:
- dependency-name: rack
  dependency-version: 3.1.16
  dependency-type: indirect
...

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

Author: dependabot[bot]

Gemfile.lock

@@ -35,7 +35,7 @@ GEM
     prettier_print (1.2.1)
     prism (1.4.0)
     racc (1.8.1)
-    rack (3.1.15)
+    rack (3.1.16)
     rainbow (3.1.1)
     regexp_parser (2.10.0)
     rubocop (1.75.8)