Add an option to retry based on error message

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# Requirement

## Short Story
I have flaky test cases that have 60% chance to fail, but only in test automation, not in manual testing. Retrying helps. All test cases fail with almost the same error message. I would like to rerun those test cases that fail with an expected error message. All other errors are actual failures and I do **not** want to retry them.

## Long Story
I have browser test cases running against a SUT implemented in MaterialUI. MaterialUI in itself seems to be flaky when being used too fast (even in manual testing). However, I can't change the SUT, so test cases have to work on MaterialUI, too. As the error messages all hold similar cause (only details in the stacktrace differ), i would like to retry these flaky test cases automatically. All other errors shall count as failure without a retry.

# Suggestion

```robotframework
*** Test Cases ***
Test Super Flaky MaterialUI
[Tags] test:retry(3)(MaterialPopover) # flaky error message always contains "MaterialPopover"
Login User
....
```

Start with the Robot Framework listener and tag-based retry handling described in the issue, then trace how retry counts and failure messages are currently evaluated. Define completion as supporting a tag such as test:retry(3)(MaterialPopover), retrying only failures whose error message contains the requested text while preserving normal failures for other errors.

Written by the indexing model from the issue text.