Correct bind usage in product import and export (bind wasn't targeting jQuery object; was native JS bind)

assets/js/admin/wc-product-export.js

@@ -11,7 +11,7 @@
 		this.$form.find('.woocommerce-exporter-progress').val( 0 );
 
 		// Methods.
-		this.processStep = this.processStep.on( this );
+		this.processStep = this.processStep.bind( this );
 
 		// Events.
 		$form.on( 'submit', { productExportForm: this }, this.onSubmit );

assets/js/admin/wc-product-import.js

@@ -23,7 +23,7 @@
 		// Initial state.
 		this.$form.find('.woocommerce-importer-progress').val( 0 );
 
-		this.run_import = this.run_import.on( this );
+		this.run_import = this.run_import.bind( this );
 
 		// Start importing.
 		this.run_import();