Update version for 5.7.0 RC1
Update version for 5.7.0 RC1

mefarazath/product-is,wso2/product-is,madurangasiriwardena/product-is,madurangasiriwardena/product-is,mefarazath/product-is,madurangasiriwardena/product-is,madurangasiriwardena/product-is,wso2/product-is,mefarazath/product-is,madurangasiriwardena/product-is,mefarazath/product-is,wso2/product-is,wso2/product-is,wso2/product-is,mefarazath/product-is