maintainers: add more Matrix IDs

maintainers/maintainer-list.nix

@@ -159,6 +159,7 @@
   };
   abbe = {
     email = "ashish.is@lostca.se";
+    matrix = "@abbe:badti.me";
     github = "wahjava";
     githubId = 2255192;
     name = "Ashish SHUKLA";
@@ -1663,6 +1664,7 @@
   };
   bryanasdev000 = {
     email = "bryanasdev000@gmail.com";
+    matrix = "@bryanasdev000:matrix.org";
     github = "bryanasdev000";
     githubId = 53131727;
     name = "Bryan Albuquerque";
@@ -7699,6 +7701,7 @@
   mohe2015 = {
     name = "Moritz Hedtke";
     email = "Moritz.Hedtke@t-online.de";
+    matrix = "@moritz.hedtke:matrix.org";
     github = "mohe2015";
     githubId = 13287984;
     keys = [{
@@ -8686,6 +8689,7 @@
   };
   pamplemousse = {
     email = "xav.maso@gmail.com";
+    matrix = "@pamplemouss_:matrix.org";
     github = "Pamplemousse";
     githubId = 2647236;
     name = "Xavier Maso";