chore: update Go version to 1.26.0 (#2342)

go.mod

@@ -1,6 +1,6 @@
 module github.com/prometheus-community/windows_exporter
 
-go 1.25.0
+go 1.26.0
 
 require (
 	github.com/alecthomas/kingpin/v2 v2.4.0

internal/utils/utils.go

@@ -33,10 +33,6 @@ func BoolToFloat(b bool) float64 {
 	return 0.0
 }
 
-func ToPTR[t any](v t) *t {
-	return &v
-}
-
 func PercentageToRatio(percentage float64) float64 {
 	return percentage / 100
 }