(#1057) Update minimum SQL Server version

Changes in .NET and the ASP.NET ZERO template mean
we need to update our minimum supported SQL Server
version.

Additionally, SQL Server versions up to 2014 are now
entirely out of support as of July 2024, so we can only
support 2016 and later.

Author: vexx32

src/content/docs/en-us/central-management/setup/database.mdx

@@ -26,7 +26,7 @@ At the end of this, we should have a fully ready to go SQL Server:
 ## Step 1: Complete Prerequisites
 
 * <Xref title="High-level Requirements" value="ccm-setup" anchor="high-level-requirements" />
-* SQL Server 2012 or later.
+* SQL Server 2016 or later.
 
 <Callout type="info">
     While we'd like to support different database engines at some point in the distant future, currently only SQL Server is supported.