Identity Server 5.4.0-Alpha8 release version update (#1438)
Identity Server 5.4.0-Alpha8 release version update (#1438)

* Identity Server 5.4.0-Alpha8 release version update.
* Removed the migration client from the build.

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