Update next tag version files : 21.03.9

package.json

 {
   "name": "parapheur",
-  "version": "21.03.8",
+  "version": "21.03.9",
   "description": "Annoter ou Signer vos documents sur votre tablette",
   "homepage": "https://labs.maarch.org/maarch/MaarchParapheur",
   "scripts": {