chore(deps): update dependency synadm to v0.40

This MR contains the following updates:

Package	Update	Change
synadm	minor	==0.39 -> ==0.40

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Release Notes

joj0/synadm

v0.40

Compare Source

Improved / Changed

• Rename from batch mode to non-interactive mode by @​JOJ0 in https://github.com/JOJ0/synadm/pull/102
• Streamline notice send --batch-size option by @​JOJ0 in https://github.com/JOJ0/synadm/pull/104

New

• Make it possible to change user type by @​gergelypolonkai in https://github.com/JOJ0/synadm/pull/90
• User list pagination & Deactivate multiple accounts based on regex by @​JacksonChen666 in https://github.com/JOJ0/synadm/pull/93
• Add CONTRIBUTING.md by @​JOJ0 in https://github.com/JOJ0/synadm/pull/99

Fixed

• Catch missing rooms when deleting by @​JacksonChen666 in https://github.com/JOJ0/synadm/pull/94
• Fix changing admin-enabled user to regular user by @​JOJ0 in https://github.com/JOJ0/synadm/pull/103

Notes

Full Changelog: https://github.com/JOJ0/synadm/compare/v0.39...v0.40

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