Update rack to the latest version (#6381)

Author: colby-swandale

Gemfile.lock

@@ -626,7 +626,7 @@ GEM
     pwned (2.4.1)
     raabro (1.4.0)
     racc (1.8.1)
-    rack (3.2.5)
+    rack (3.2.6)
     rack-attack (6.8.0)
       rack (>= 1.0, < 4)
     rack-oauth2 (2.2.1)
@@ -1289,7 +1289,7 @@ CHECKSUMS
   pwned (2.4.1) sha256=e375b45e1cd78aded2c923737f75e09e64bc66582142c144bd85f4ce1fa0955d
   raabro (1.4.0) sha256=d4fa9ff5172391edb92b242eed8be802d1934b1464061ae5e70d80962c5da882
   racc (1.8.1) sha256=4a7f6929691dbec8b5209a0b373bc2614882b55fc5d2e447a21aaa691303d62f
-  rack (3.2.5) sha256=4cbd0974c0b79f7a139b4812004a62e4c60b145cba76422e288ee670601ed6d3
+  rack (3.2.6) sha256=5ed78e1f73b2e25679bec7d45ee2d4483cc4146eb1be0264fc4d94cb5ef212c2
   rack-attack (6.8.0) sha256=f2499fdebf85bcc05573a22dff57d24305ac14ec2e4156cd3c28d47cafeeecf2
   rack-oauth2 (2.2.1) sha256=c73aa87c508043e2258f02b4fb110cacba9b37d2ccf884e22487d014a120d1a5
   rack-protection (4.2.1) sha256=cf6e2842df8c55f5e4d1a4be015e603e19e9bc3a7178bae58949ccbb58558bac