Update dependencies

Among others, this updates minio-go, so that the new "eu-west-3" zone
for AWS is supported.

vendor/cloud.google.com/go/firestore/testdata/create-complex.textproto

@@ -0,0 +1,61 @@
+# DO NOT MODIFY. This file was generated by
+# github.com/GoogleCloudPlatform/google-cloud-common/testing/firestore/cmd/generate-firestore-tests/generate-firestore-tests.go.
+
+# A call to a write method with complicated input data.
+
+description: "create: complex"
+create: <
+  doc_ref_path: "projects/projectID/databases/(default)/documents/C/d"
+  json_data: "{\"a\": [1, 2.5], \"b\": {\"c\": [\"three\", {\"d\": true}]}}"
+  request: <
+    database: "projects/projectID/databases/(default)"
+    writes: <
+      update: <
+        name: "projects/projectID/databases/(default)/documents/C/d"
+        fields: <
+          key: "a"
+          value: <
+            array_value: <
+              values: <
+                integer_value: 1
+              >
+              values: <
+                double_value: 2.5
+              >
+            >
+          >
+        >
+        fields: <
+          key: "b"
+          value: <
+            map_value: <
+              fields: <
+                key: "c"
+                value: <
+                  array_value: <
+                    values: <
+                      string_value: "three"
+                    >
+                    values: <
+                      map_value: <
+                        fields: <
+                          key: "d"
+                          value: <
+                            boolean_value: true
+                          >
+                        >
+                      >
+                    >
+                  >
+                >
+              >
+            >
+          >
+        >
+      >
+      current_document: <
+        exists: false
+      >
+    >
+  >
+>