chore(deps): update vectorim/element-web docker tag to v1.11.73

[renovate[bot]]

This PR contains the following updates:

Package	Update	Change
vectorim/element-web	patch	v1.11.72 -> v1.11.73

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Release Notes

element-hq/element-web (vectorim/element-web)

### [`v1.11.73`](https://togithub.com/element-hq/element-web/releases/tag/v1.11.73) [Compare Source](https://togithub.com/element-hq/element-web/compare/v1.11.72...v1.11.73) Fixes for CVE-2024-42347 / GHSA-f83w-wqhc-cfp4

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