do not use deprecated functions/methods (#2027)

Signed-off-by: Gaurav Gahlot <gauravgahlot0107@gmail.com>

Co-authored-by: Sanket Sudake <sanketsudake@gmail.com>

cmd/fission-bundle/main.go

@@ -256,7 +256,7 @@ Options:
 	defer logger.Sync()
 
 	version := fmt.Sprintf("Fission Bundle Version: %v", info.BuildInfo().String())
-	arguments, err := docopt.Parse(usage, nil, true, version, false)
+	arguments, err := docopt.ParseArgs(usage, nil, version)
 	if err != nil {
 		logger.Fatal("Could not parse command line arguments", zap.Error(err))
 	}

cmd/preupgradechecks/main.go

@@ -51,7 +51,7 @@ Options:
   --fn-pod-namespace=<podNamespace>                        Namespace where function pods get deployed.
   --envbuilder-namespace=<envBuilderNamespace>             Namespace where builder env pods are deployed.`
 
-	arguments, err := docopt.Parse(usage, nil, true, info.BuildInfo().String(), false)
+	arguments, err := docopt.ParseArgs(usage, nil, info.BuildInfo().String())
 	if err != nil {
 		logger.Fatal("Could not parse command line arguments", zap.Error(err))
 	}