fix: upgrade bootstrap-vue from 2.16.0 to 2.21.2

Snyk has created this PR to upgrade bootstrap-vue from 2.16.0 to 2.21.2.

See this package in npm:
https://www.npmjs.com/package/bootstrap-vue

See this project in Snyk:
https://app.snyk.io/org/nguyenkims/project/23cffba7-d3c7-4e43-890c-5dcb85b749ff?utm_source=github&utm_medium=referral&page=upgrade-pr

package.json

@@ -24,7 +24,7 @@
     "@sentry/integrations": "^5.23.0",
     "axios": "^0.21.3",
     "bootstrap": "^4.5.2",
-    "bootstrap-vue": "^2.16.0",
+    "bootstrap-vue": "^2.21.2",
     "v-clipboard": "^2.2.3",
     "vue": "^2.6.14",
     "vue-js-modal": "^1.3.35",