Update case-insensitive to 1.4.2 in series/0.9 (#1114)

Co-authored-by: http4s-steward[bot] <106843772+http4s-steward[bot]@users.noreply.github.com>
Co-authored-by: Ross A. Baker <ross@rossabaker.com>

Author: http4s-steward[bot]

build.sbt

@@ -41,7 +41,7 @@ val scodecV = "1.2.1"
 val http4sV = "0.23.26"
 val reactiveStreamsV = "1.0.4"
 val vaultV = "3.6.0"
-val caseInsensitiveV = "1.4.0"
+val caseInsensitiveV = "1.4.2"
 
 val munitV = "1.0.2"
 val munitCatsEffectV = "2.0.0"