fix(deps): update dependency bootstrap-vue to v2.23.1

Author: renovate[bot]

@uportal/notification-modal/package.json

@@ -23,7 +23,7 @@
     "dependencies": {
         "@uportal/open-id-connect": "1.33.2",
         "axios": "0.19.2",
-        "bootstrap-vue": "2.0.0-rc.21",
+        "bootstrap-vue": "2.23.1",
         "vue": "^2.6.10"
     },
     "devDependencies": {