Update vendor

vendor/github.com/go-openapi/spec/fixtures/expansion/params.json

@@ -0,0 +1,25 @@
+{
+  "parameters": {
+    "id": {
+      "type": "integer",
+      "format": "int64",
+      "in": "path",
+      "required": true
+    },
+    "tag": {
+      "type": "string",
+      "in": "query",
+      "required": false
+    },
+    "query": {
+      "$ref": "#/parameters/tag"
+    }
+  },
+  "paths": {
+    "/cars/{id}": {
+      "parameters": [
+        { "$ref": "#/parameters/id"}
+      ]
+    }
+  }
+}