Remove runtime patterns after run

[ElenaKhaustova]

Description

Solves #4340

Development notes

Added a method to remove runtime patters after the run so they live only within the run and do not affect other runs.

This solution originally was suggested in #4236 but was replaced with another one which solved the original problem but not catalog mutation.

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Checklist

• Read the contributing guidelines
• Signed off each commit with a Developer Certificate of Origin (DCO)
• Opened this PR as a 'Draft Pull Request' if it is work-in-progress
• Updated the documentation to reflect the code changes
• Added a description of this change in the RELEASE.md file
• Added tests to cover my changes
• Checked if this change will affect Kedro-Viz, and if so, communicated that with the Viz team

[merelcht]

This solution originally was suggested in #4236 but was replaced with another one which solved the original problem but not catalog mutation.

Why was this solution replaced in the first PR? I couldn't quite figure it out from the thread there.

[ElenaKhaustova]

This solution originally was suggested in #4236 but was replaced with another one which solved the original problem but not catalog mutation.

Why was this solution replaced in the first PR? I couldn't quite figure it out from the thread there.

There were actually two bugs and both of them were related to the way we process MemoryDataset's and how we define free outputs. The first reported by the user could be resolved by removing patterns but the second could not, so another solution was implemented to handle them both. But mutation remained as we didn't go with the patterns removing solution.

Here is the comment about the implemented solution #4236 (comment)

The previous solution also covers the current bug, but we still think mutation looks confusing and should not happen, so in this PR, we remove patterns added at runtime.

[merelcht]

LGTM 👍