[New Maintainers] Becoming GitHub Admins

[HowardvanRooijen]

Ian Griffiths (@idg10) and Howard van Rooijen (@HowardvanRooijen) from endjin have volunteered to become project maintainers.

With the support of @jglozano & @richlander from the .NET Foundation, a meeting was convened with @clairernovotny, @bartdesmet on 2023-01-20

Based on their existing maintenance of reaqtor it was agreed and they were assigned access.

[richlander]

Congratulations! It was obvious talking to both of you that you deserve to be maintainers and have a lot of passion for the project.

I'm glad that @jglozano and I could help, if in a small way.