feat: Bump module to Go 1.23

* Requires go1.23.
* Sets toolchain to latest go1.23 version, which is go1.23.4.

Author: ctlong

go.mod

@@ -1,7 +1,8 @@
 module code.cloudfoundry.org/log-cache-cli/v4
 
-go 1.22
-toolchain go1.22.8
+go 1.23
+
+toolchain go1.23.4
 
 require (
 	code.cloudfoundry.org/cli v7.1.0+incompatible