automation: Update docker-matrix_riotweb Docker tag to v1.11.52

This MR contains the following updates:

Package	Update	Change
docker-matrix_riotweb	patch	v1.11.51 -> v1.11.52

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Release Notes

element-hq/element-web

v1.11.52

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✨ Features

• Keep more recent rageshake logs (#​12003). Contributed by @​richvdh.

🐛 Bug Fixes

• Fix bug which prevented correct clean up of rageshake store (#​12002). Contributed by @​richvdh.
• Set up key backup using non-deprecated APIs (#​12005). Contributed by @​andybalaam.
• Fix notifications appearing for old events (#​3946). Contributed by @​dbkr.
• Prevent phantom notifications from events not in a room's timeline (#​3942). Contributed by @​dbkr.

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