Update .netconfig to skip incoming SL.sln

Author: kzu

.netconfig

@@ -19,7 +19,9 @@
 [file "src/kzu.snk"]
 	url = https://github.com/devlooped/oss/blob/main/src/kzu.snk
 	skip
-
+[file "SponsorLink.sln"]
+	url = https://github.com/devlooped/oss/blob/main/SponsorLink.sln
+	skip
 [file ".github/workflows/test/action.yml"]
 	url = https://github.com/devlooped/oss/blob/main/.github/workflows/test/action.yml
 	sha = 9a1b07589b9bde93bc12528e9325712a32dec418