Quality-of-Life Improvements

[boehmseb]

This is a collection of several QoL improvements I collected over the last year or so.
Let me know if you want me to separate them out into multiple PRs.

Container:

• Introduces option to specify a custom seccopmp.json when using containers.
• Give PERFMON capabilities to containers
• Make BenchBuild result and tmp directory mounts configurable

Project:

• Adds "*" as a wildcard to select all versions in version filters.

Sources:

• [Git] Remember git sources that were already fetched to avoid repeated fetch calls (some git hosts are easily overwhelmed).
• [Git] Allow specifying different URLs for submodules.
• [Git] Checkout the specified refspec after fetch (including submodules).
• [HTTPUntar] Set "--no-same-owner" flag when for tar (sometimes required when we are root, i.e., in containers).
• [HTTP] Allow skipping SSL certificate check when fetching HTTP sources.

[simbuerg]

Nice additions, thank you! Want me to push a fresh release?

[boehmseb]

Nice additions, thank you! Want me to push a fresh release?

Since we are moving on to Python 3.13 and 3.14, I would like to wait until we have confirmed that everything works fine.
We might open another PR if any issues pop up there. Afterwards, a new release would be nice.