chore(deps): bump bootstrap from 4.3.1 to 4.4.0

Bumps [bootstrap](https://github.com/twbs/bootstrap) from 4.3.1 to 4.4.0.
- [Release notes](https://github.com/twbs/bootstrap/releases)
- [Commits](twbs/bootstrap@v4.3.1...v4.4.0)

Signed-off-by: dependabot-preview[bot] <[email protected]>

Author: dependabot-preview[bot]

package-lock.json

@@ -52,7 +52,7 @@
   },
   "dependencies": {
     "@neos21/bootstrap3-glyphicons": "^1.0.4",
-    "bootstrap": "^4.3.1",
+    "bootstrap": "^4.4.0",
     "highlight.js": "^9.16.2",
     "jquery": "^3.4.1",
     "popper.js": "^1.16.0"