This PR makes it so when the admin submits the custom S3 bucket settings, we store it in the KV store, and store a string of asterisks in the server config. This is so we never expose the saved secret to the client later.
This PR also requires upgrading the MM server dependency. ATM this PR sets it to a very recent version, though it only needs to be up to 8.0 for the ConfigurationWillBeSaved hook.
Summary
This PR makes it so when the admin submits the custom S3 bucket settings, we store it in the KV store, and store a string of asterisks in the server config. This is so we never expose the saved secret to the client later.
This PR also requires upgrading the MM server dependency. ATM this PR sets it to a very recent version, though it only needs to be up to 8.0 for the
ConfigurationWillBeSavedhook.Ticket Link
Fixes https://github.com/mattermost/mattermost-plugin-legal-hold/issues/54