The Karakeep module previously set the `experimental_dumpless_upgrade`
setting, which was renamed in meilisearch 1.51.0, which is causing
meilisearch to fail to parse its config file and crash.
This setting was renamed for the meilisearch module in #548169, but the
Karakeep module was also configuring this setting. Per the karakeep
module's comment, this option was intended to be removed once dumpless
upgrades were the default in meilisearch, so I've removed this option.
Resolves#548609
