1792 Add rate limiter for excel-export-service

[galethil]

Checklist

• [ ] I have followed (at least) the PR section of the contributing guide.
• [ ] I fixed all necessary PR warnings
• [ ] The commit history is clean
• [ ] The E2E tests are passing
• [ ] If possible, the issue has been divided into more subtasks
• [ ] I did a self review before requesting a review from another team member

Description

How to test

1. Set RATE_LIMIT to low value, e.g. 3
2. Create multiple requests to excel service
4. ...

Closes #1792

[openkfwCI]

	Notes	Time
:x:	Note for Reviewer: E2E tests on pipeline 58680 on remote server failed	Wed, 24 Apr 2024 13:56:50 +0000

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