upgrade Mermaid and Flowchart.js

src/data/extra/web/js/flowchart.js/README.md

@@ -1,5 +1,5 @@
 # [flowchart.js](https://github.com/adrai/flowchart.js)
-v1.14.0
+v1.17.1
 
 # [Raphael](https://github.com/DmitryBaranovskiy/raphael)
 v2.3.0

src/data/extra/web/js/mermaid/README.md

@@ -1,2 +1,2 @@
 # [mermaid](https://github.com/mermaid-js/mermaid)
-v8.9.1
+v9.4.3