mattermost-load-test-ng-v1.9.0

What's Changed

• MM-49702: Adding gql initial load endpoint by @agnivade in #544
• MM-51097: Revert improvement to HTTPRequestTimes metric by @agarciamontoro in #572
• Switch to graviton instances for RDS by @agnivade in #571
• Update setPostReminder with accurate frequencies by @agnivade in #570
• Bump aurora-mysql version to 2.11.1 by @agarciamontoro in #575
• Added graphql request for loading channels and channelmembers by @agnivade in #569
• Add option to exclude file count by @agnivade in #576
• Merge createPost and createPostReply by @agarciamontoro in #562
• Update dependencies by @agarciamontoro in #579
• MM-52110: Avoid requesting the config at the same time for all users by @agarciamontoro in #580
• Bump version to v1.9.0 by @agarciamontoro in #578

Full Changelog: v1.8.0...v1.9.0