doc: move 8 collaborators to emeriti
As discussed in TSC email, I contacted 8 Collaborators whose last activity appears to be quite some time ago to suggest that they be moved to emeritus status until such a time as they will be active again. There were no objections from the 8 Collaborators or the TSC.
Checklist
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documentation is changed or added -
commit message follows commit guidelines
Affected core subsystem(s)
doc