Update sass dependencies

twbs/bootstrap-sass#1228 (comment)

Author: lcharette

package-lock.json

@@ -7,7 +7,7 @@
     "dependencies": {
         "@fortawesome/fontawesome-free": "~5.15.2",
         "admin-lte": "^2.4",
-        "bootstrap-sass": "3.4.1",
+        "bootstrap-sass": "^3.4.1",
         "bootstrap-select": "^1.13.18",
         "clipboard": "^2.0",
         "core-js": "^3.21.1",
@@ -22,7 +22,6 @@
         "jquery-ui": "^1.12",
         "jquery-validation": "~1.19.3",
         "moment": "^2.17.1",
-        "node-sass": "^4.13",
         "sass-loader": "^10.0",
         "select2": "^4.0.5",
         "speakingurl": "^11.0.0",
@@ -31,6 +30,7 @@
     },
     "devDependencies": {
         "@symfony/webpack-encore": "^1.7.0",
+        "sass": "^1.51.0",
         "webpack-notifier": "^1.14.1"
     },
     "scripts": {