build: Fix deepsource test & exclude patterns (#7969)

.deepsource.toml

@@ -1,7 +1,7 @@
 version = 1
 
-exclude_patterns = ["*.pb.go"]
-test_patterns = ["*_test.go"]
+exclude_patterns = ["**/*.pb.go"]
+test_patterns = ["**/*_test.go"]
 
 [[analyzers]]
 name = "go"