Bump @fortawesome/free-solid-svg-icons

Bumps [@fortawesome/free-solid-svg-icons](https://github.com/FortAwesome/Font-Awesome) from 5.15.4 to 6.2.1.
- [Release notes](https://github.com/FortAwesome/Font-Awesome/releases)
- [Changelog](https://github.com/FortAwesome/Font-Awesome/blob/6.x/CHANGELOG.md)
- [Commits](FortAwesome/Font-Awesome@5.15.4...6.2.1)

---
updated-dependencies:
- dependency-name: "@fortawesome/free-solid-svg-icons"
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

viplab-standalone-frontend-vue/package-lock.json

@@ -9,7 +9,7 @@
   },
   "dependencies": {
     "@fortawesome/fontawesome-svg-core": "^6.2.1",
-    "@fortawesome/free-solid-svg-icons": "^5.15.3",
+    "@fortawesome/free-solid-svg-icons": "^6.2.1",
     "@fortawesome/vue-fontawesome": "^2.0.2",
     "@rleys/vue-plotly-basic": "^1.1.14",
     "@vue/composition-api": "^1.1.3",