fix(deps): bump @nextcloud/calendar-js from 8.1.4 to ^8.1.6

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

Author: renovate[bot]

package.json

@@ -29,7 +29,7 @@
     "@mdi/svg": "^7.4.47",
     "@nextcloud/auth": "^2.5.3",
     "@nextcloud/axios": "^2.5.2",
-    "@nextcloud/calendar-js": "^8.1.4",
+    "@nextcloud/calendar-js": "^8.1.6",
     "@nextcloud/cdav-library": "^2.1.1",
     "@nextcloud/dialogs": "^6.3.2",
     "@nextcloud/files": "^3.12.0",