Update sdks/csharp/release~/spacetimedb.bsatn.runtime/unversioned/.gitignore

Co-authored-by: Zeke Foppa <196249+bfops@users.noreply.github.com>
Signed-off-by: John Detter <4099508+jdetter@users.noreply.github.com>

Author: jdetter

sdks/csharp/release~/spacetimedb.bsatn.runtime/unversioned/.gitignore

@@ -5,4 +5,4 @@ README.md
 logo.png
 spacetimedb.bsatn.runtime.*.nupkg*
 spacetimedb.bsatn.runtime.nuspec
-**/*.xml
+*.xml