Revert "Merge pull request #1194 from processing/dependabot/npm_and_yarn/simple-git-3.5.0"

This reverts commit b5fdb9b, reversing
changes made to c803bb3.

Author: Lucie-Brosson

package-lock.json

@@ -87,7 +87,7 @@
     "qs": "^6.10.1",
     "send": "^0.16.2",
     "serve-index": "^1.9.1",
-    "simple-git": "^3.5.0",
+    "simple-git": "^3.3.0",
     "time-grunt": "^1.4.0",
     "uglify-js": "^2.8.29",
     "yaml": "^1.10.2"