Version bump for release. (UbiquityDotNET#11)

Changes in this library are major to support correct CSemVer-CI ordering. Thus, a major version bump is warranted.

Co-authored-by: smaillet <[email protected]>

Author: smaillet

BuildVersion.xml

@@ -3,7 +3,7 @@ This file is updated on a public release to set the build number for a release a
 will be based on
 -->
 <BuildVersionData
-    BuildMajor = "5"
+    BuildMajor = "6"
     BuildMinor = "0"
-    BuildPatch = "4"
+    BuildPatch = "0"
 />