Merge latest Library.Template

[AArnott]

• Fix empty optimization inputs drops
• Use spaces for xml config files
• Better logging on source code archival failure
• Bump .NET SDK to 8.0.300
• Merge test related dependency updates (#271)
• Enable ShallowClone for VSInsertion
• Ensure Expand-Template uses UTF-8 when replacing placeholders.

[AArnott]

/azp run

[azure-pipelines[bot]]

Azure Pipelines could not run because the pipeline triggers exclude this branch/path.

[AArnott]

/azp run

[AArnott]

/azp run

[azure-pipelines[bot]]

Azure Pipelines could not run because the pipeline triggers exclude this branch/path.