Moved org maintainers to emeritus

[toddysm]

Addressing https://github.com/notaryproject/.github/issues/66 and https://github.com/notaryproject/.github/issues/68 also addressing https://github.com/notaryproject/.github/issues/67 and https://github.com/notaryproject/.github/issues/69

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 67.35%. Comparing base (eaa5fb4) to head (ebac7cf). Report is 19 commits behind head on main.

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Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #919 +/- ## ========================================== + Coverage 64.93% 67.35% +2.42% ========================================== Files 45 45 Lines 2729 2166 -563 ========================================== - Hits 1772 1459 -313 + Misses 795 545 -250 Partials 162 162 ```

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