Set IncrementalVersion=true

build/repo.beforecommon.props

@@ -0,0 +1,10 @@
+<Project>
+  <PropertyGroup>
+    <!--
+        This ensures the build number is a time-based number for local builds.
+        This is important for local builds of Universe which need to ensure repo-to-repo
+        builds are using new articacts, not ones from the global cache.
+    -->
+    <IncrementalVersion>true</IncrementalVersion>
+  </PropertyGroup>
+</Project>