Deprecate once-called redundant getLatestPackage

getBestPackage present a more generic interface,
as long as we feed it Dependency.any.

Author: Geod24

source/dub/commandline.d

@@ -1089,9 +1089,8 @@ abstract class PackageBuildCommand : Command {
 
 		enforce(package_name.length, "No valid root package found - aborting.");
 
-		auto pack = ver == ""
-			? dub.packageManager.getLatestPackage(package_name)
-			: dub.packageManager.getBestPackage(package_name, ver);
+		auto pack = dub.packageManager.getBestPackage(
+            package_name, ver.length ? Dependency(ver) : Dependency.any);
 
 		enforce(pack, format!"Failed to find a package named '%s%s' locally."(package_name,
 			ver == "" ? "" : ("@" ~ ver)

source/dub/packagemanager.d

@@ -223,6 +223,7 @@ class PackageManager {
 
 	/** Looks up the latest package matching the given name.
 	*/
+	deprecated("Use `getBestPackage` with `name, Dependency.any` instead")
 	Package getLatestPackage(string name)
 	{
 		Package pkg;