fix: updated dependabot.yml directory to check for projects (#1853)

Dependabot stopped generating new PRs and logs show no project found.

Implementing fix as per
dependabot/dependabot-core#10145. We can only
verify the changes once it is merged to master.

.github/dependabot.yml

@@ -3,7 +3,7 @@
 version: 2
 updates:
 - package-ecosystem: nuget
-  directory: "/"
+  directory: "/src"
   schedule:
     interval: daily
     time: "08:30"  # UTC