Failure Summary should only contain the last failure for retried tasks

Background

!561 (merged) is a start at removing redundant/non relevant messaging from the build summary. This change should ensure the failure summary only contains messages from elements that have failed in the current run. However, this will show all failure messages for the given elements, from the current run or previous. It has been suggested that only showing failure messages from the current run would be beneficial.

Task description

• Assess how failure messages are stored per element
• Pick best method to only keep/print failure messages from current run

Acceptance Criteria

Print Summary only contains failure messages confirmed to be from the current/run.

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