Update vendored library cloud.google.com/go

vendor/cloud.google.com/go/firestore/testdata/query-select-empty.textproto

@@ -0,0 +1,23 @@
+# DO NOT MODIFY. This file was generated by
+# github.com/GoogleCloudPlatform/google-cloud-common/testing/firestore/cmd/generate-firestore-tests/generate-firestore-tests.go.
+
+# An empty Select clause selects just the document ID.
+
+description: "query: empty Select clause"
+query: <
+  coll_path: "projects/projectID/databases/(default)/documents/C"
+  clauses: <
+    select: <
+    >
+  >
+  query: <
+    select: <
+      fields: <
+        field_path: "__name__"
+      >
+    >
+    from: <
+      collection_id: "C"
+    >
+  >
+>