chore(deps): update dependency go to v1.26.1

Author: renovate[bot]

go.mod

@@ -2,7 +2,7 @@ module github.com/adobe/cluster-registry
 
 go 1.23.0
 
-toolchain go1.23.4
+toolchain go1.26.1
 
 require (
 	dario.cat/mergo v1.0.1