Bump rack from 2.2.18 to 2.2.20 (#337)

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

Author: dependabot[bot]

Gemfile.lock

@@ -210,7 +210,7 @@ GEM
     puma (7.0.1)
       nio4r (~> 2.0)
     racc (1.8.1)
-    rack (2.2.18)
+    rack (2.2.20)
     rack-accept (0.4.5)
       rack (>= 0.4)
     rack-canonical-host (1.3.0)
@@ -359,7 +359,7 @@ GEM
     unicode-display_width (3.2.0)
       unicode-emoji (~> 4.1)
     unicode-emoji (4.1.0)
-    uri (1.0.3)
+    uri (1.0.4)
     useragent (0.16.11)
     versionomy (0.5.0)
       blockenspiel (~> 0.5)