update(dep): met à jour les extensions geoportail

- ext-gp-ol : 3.0.14
- ext-gp-itowns : 2.3.1
- ext-gp-leaflet : 2.1.8

- gp-access-lib : 2.1.7

package.json

@@ -71,12 +71,12 @@
         "exports-loader": "^0.7.0",
         "expose-loader": "^0.7.5",
         "fs-extra": "^9.0.0",
-        "geoportal-extensions-itowns": "2.3.0",
-        "geoportal-extensions-openlayers": "3.0.13",
+        "geoportal-extensions-itowns": "2.3.1",
+        "geoportal-extensions-openlayers": "3.0.14",
         "handlebars": "^4.7.5",
         "handlebars-layouts": "^3.1.4",
         "html-webpack-plugin": "^4.0.4",
-        "itowns": "^2.27.0",
+        "itowns": "2.27.0",
         "jsdoc-webpack-plugin": "^0.3.0",
         "loglevel": "1.6.6",
         "mini-css-extract-plugin": "^0.9.0",