Bump rack from 3.2.2 to 3.2.3 (#741)

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

Author: dependabot[bot]

Gemfile.lock

@@ -343,7 +343,7 @@ GEM
       nio4r (~> 2.0)
     raabro (1.4.0)
     racc (1.8.1)
-    rack (3.2.2)
+    rack (3.2.3)
     rack-cors (3.0.0)
       logger
       rack (>= 3.0.14)