Merge pull request #6204 from plotly/mathjax-v3.2.1

bump mathjax v3.2.1

Author: archmoj

package-lock.json

@@ -156,7 +156,7 @@
     "lodash": "^4.17.21",
     "madge": "^5.0.1",
     "mathjax-v2": "npm:mathjax@2.7.5",
-    "mathjax-v3": "npm:mathjax@^3.2.0",
+    "mathjax-v3": "npm:mathjax@^3.2.1",
     "minify-stream": "^2.1.0",
     "npm-link-check": "^4.0.0",
     "open": "^8.4.0",