Update dependency ember-bootstrap to v6.6.1 (#295)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

package.json

@@ -59,7 +59,7 @@
     "broccoli-asset-rev": "3.0.0",
     "concurrently": "9.2.1",
     "ember-auto-import": "2.11.2",
-    "ember-bootstrap": "6.5.0",
+    "ember-bootstrap": "6.6.1",
     "ember-cli": "6.8.0",
     "ember-cli-clean-css": "3.0.0",
     "ember-cli-dependency-checker": "3.3.3",