[Snyk] Upgrade @mui/icons-material from 5.15.6 to 5.15.14

[jstabenow]

This PR was automatically created by Snyk using the credentials of a real user.

Snyk has created this PR to upgrade @mui/icons-material from 5.15.6 to 5.15.14.

:information_source: Keep your dependencies up-to-date. This makes it easier to fix existing vulnerabilities and to more quickly identify and fix newly disclosed vulnerabilities when they affect your project.

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- The recommended version is **8 versions** ahead of your current version. - The recommended version was released **21 days ago**, on 2024-03-19.

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**Note:** *You are seeing this because you or someone else with access to this repository has authorized Snyk to open upgrade PRs.* For more information: 🧐 [View latest project report](https://app.snyk.io/org/j.stabenow/project/204cdfb1-d11d-4cbe-87df-f862f7880c39?utm_source=github&utm_medium=referral&page=upgrade-pr) 🛠 [Adjust upgrade PR settings](https://app.snyk.io/org/j.stabenow/project/204cdfb1-d11d-4cbe-87df-f862f7880c39/settings/integration?utm_source=github&utm_medium=referral&page=upgrade-pr) 🔕 [Ignore this dependency or unsubscribe from future upgrade PRs](https://app.snyk.io/org/j.stabenow/project/204cdfb1-d11d-4cbe-87df-f862f7880c39/settings/integration?pkg=@mui/icons-material&utm_source=github&utm_medium=referral&page=upgrade-pr#auto-dep-upgrades)

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