deps: update dependency go to v1.26.1 (#1373)

Author: renovate[bot]

go.mod

@@ -2,7 +2,7 @@ module github.com/hetznercloud/cli
 
 go 1.25.0
 
-toolchain go1.25.8
+toolchain go1.26.1
 
 require (
 	github.com/BurntSushi/toml v1.6.0

mise.toml

@@ -1,5 +1,5 @@
 [tools]
-go = "1.25.8"
+go = "1.26.1"
 "go:go.uber.org/mock/mockgen" = "v0.6.0"
 "github:golangci/golangci-lint" = "2.11.3"
 "github:goreleaser/goreleaser" = "v2.14.3"