Rename OpenAPI specs to privatecloud-*-v4.yaml format and update references

Author: mxashokkhedkar

content/en/docs/apidocs-mxsdk/apidocs/deployment/private-cloud-build-api.md

@@ -112,4 +112,4 @@ Follow the steps below to upload a deployment package by using the API.
 
 ## API Reference
 
-{{< swaggerui src="/openapi-spec/private-cloud-build-api.yaml"  >}}
+{{< swaggerui src="/openapi-spec/privatecloud-build-v4.yaml"  >}}

content/en/docs/apidocs-mxsdk/apidocs/deployment/private-cloud-deploy-api.md

@@ -190,4 +190,4 @@ In order to create or manage environments in a namespace through an API, the tec
 Please note that the fields marked as non-editable in the OpenAPI .yaml file are used for read-only purposes. Any modifications made to the values of these fields will be ignored.
 {{% /alert %}}
 
-{{< swaggerui src="/openapi-spec/private-cloud-deploy-api.yaml"  >}}
+{{< swaggerui src="/openapi-spec/privatecloud-deploy-v4.yaml"  >}}