docs: add new maintainers (#4919)

* docs: add new maintainers

---------

Signed-off-by: Christoph Maser <christoph.maser+github@gmail.com>
Signed-off-by: gotjosh <josue.abreu@gmail.com>
Co-authored-by: gotjosh <josue.abreu@gmail.com>
Co-authored-by: Ethan Hunter <fc.spaceman@gmail.com>

Author: 3 people

MAINTAINERS.md

@@ -2,3 +2,7 @@
 * Andrey Kuzmin <unsoundscapes@gmail.com> @w0rm
 * Josue Abreu <josue.abreu@gmail.com> @gotjosh
 * George Robinson <george.robinson@grafana.com> @grobinson-grafana
+* Solomon Jacobs <solomonjacobs@protonmail.com> @SoloJacobs
+* Ethan Hunter <fc.spaceman@gmail.com> @Spaceman1701
+* Guido Trotter <ultrotter@gmail.com> @ultrotter
+* Siavash Safi <siavash@cloudflare.com> @siavashs