Merge pull request #5078 from plotly/into-stream-v6

Bump into-stream v6

Author: archmoj

package-lock.json

@@ -141,7 +141,7 @@
     "glob": "^7.1.6",
     "gzip-size": "^5.1.1",
     "image-size": "^0.7.5",
-    "into-stream": "^5.1.1",
+    "into-stream": "^6.0.0",
     "jasmine-core": "^3.5.0",
     "jsdom": "^16.3.0",
     "karma": "^5.1.1",