Update ecosystem-back-up-vms.md

Update Cohesity link

Author: Patti Short

articles/azure-vmware/ecosystem-back-up-vms.md

@@ -17,5 +17,5 @@ You can find more information on these backup solutions here:
 - [Commvault](https://documentation.commvault.com/11.21/essential/128997_support_for_azure_vmware_solution.html)
 - [Veritas](https://vrt.as/nb4avs)
 - [Veeam](https://www.veeam.com/kb4012)
-- [Cohesity](https://www.cohesity.com/resource-assets/solution-brief/Cohesity-Azure-Solution-Brief.pdf)
+- [Cohesity](https://www.cohesity.com/blogs/expanding-cohesitys-support-for-microsofts-ecosystem-azure-stack-and-azure-vmware-solution/)
 - [Dell Technologies](https://www.delltechnologies.com/resources/en-us/asset/briefs-handouts/solutions/dell-emc-data-protection-for-avs.pdf)