increase logging level for dotenv log message

this is called very early in programs using
cobrautil and was being logged with info level.

E.g. SpiceDB calls this multiple times during bootstrap
and it becomes quite verbose

cobrautil.go

@@ -59,7 +59,7 @@ func SyncViperPreRunE(prefix string) CobraRunFunc {
 // The .dotenv file is loaded first before any additional Viper behavior.
 func SyncViperDotEnvPreRunE(prefix, envfilePath string, l logr.Logger) CobraRunFunc {
 	if err := godotenv.Load(stringz.DefaultEmpty(envfilePath, ".env")); err != nil {
-		l.Info(
+		l.V(2).Info(
 			"skipped loading dotenv",
 			"path", envfilePath,
 			"err", err,