fix(test): add missing config_test_exclude.yaml fixture (#17)

The test `Config > LoadConfig > loads a config file with skip_queries`
was failing because this fixture file was never committed.

Co-authored-by: Svetlin Ralchev <iamralch@users.noreply.github.com>

Author: iamralch

internal/sqlc/config_test_exclude.yaml

@@ -0,0 +1,9 @@
+version: "2"
+sql:
+  - schema: "schema/migration"
+    queries: "ent/query"
+    engine: "postgresql"
+    skip_queries:
+      - "DeleteUser"
+      - "UpdateAuditLog"
+      - "GetUserByEmail"