[bfops/csharp-ci]: fix gitmodules?

Author: bfops

sdks/csharp/.gitmodules .gitmodulessdks/csharp/.gitmodules renamed to .gitmodules

@@ -1,3 +1,3 @@
 [submodule "SpacetimeDBCircleGame"]
-	path = unity-tests~
+	path = sdks/csharp/unity-tests~
 	url = https://github.com/clockworklabs/SpacetimeDBCircleGame