Bump to v4.17.21

package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "lodash",
-  "version": "4.17.20",
+  "version": "4.17.21",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -1386,6 +1386,7 @@
             "node-uuid": "~1.4.0",
             "oauth-sign": "~0.4.0",
             "qs": "~1.2.0",
+            "stringstream": "~0.0.4",
             "tough-cookie": ">=0.12.0",
             "tunnel-agent": "~0.4.0"
           }
@@ -3681,9 +3682,9 @@
       }
     },
     "lodash": {
-      "version": "4.17.14",
-      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.14.tgz",
-      "integrity": "sha512-mmKYbW3GLuJeX+iGP+Y7Gp1AiGHGbXHCOh/jZmrawMmsE7MS4znI3RL2FsjbqOyMayHInjOeykW7PEajUk1/xw==",
+      "version": "4.17.20",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.20.tgz",
+      "integrity": "sha512-PlhdFcillOINfeV7Ni6oF1TAEayyZBoZ8bcshTHqOYJYlrqzRK5hagpagky5o4HfCzzd1TRkXPMFq6cKk9rGmA==",
       "dev": true
     },
     "lodash-doc-globals": {
@@ -5231,6 +5232,13 @@
         "safe-buffer": "~5.1.0"
       }
     },
+    "stringstream": {
+      "version": "0.0.6",
+      "resolved": "https://registry.npmjs.org/stringstream/-/stringstream-0.0.6.tgz",
+      "integrity": "sha512-87GEBAkegbBcweToUrdzf3eLhWNg06FJTebl4BVJz/JgWy8CvEr9dRtX5qWphiynMSQlxxi+QqN0z5T32SLlhA==",
+      "dev": true,
+      "optional": true
+    },
     "strip-ansi": {
       "version": "3.0.1",
       "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",