maintainers: Change my email address

Changed files
+1 -1
lib
+1 -1
lib/maintainers.nix
···
jcumming = "Jack Cummings <jack@mudshark.org>";
jefdaj = "Jeffrey David Johnson <jefdaj@gmail.com>";
jfb = "James Felix Black <james@yamtime.com>";
-
jgeerds = "Jascha Geerds <jg@ekby.de>";
+
jgeerds = "Jascha Geerds <jascha@jgeerds.name>";
jgillich = "Jakob Gillich <jakob@gillich.me>";
jirkamarsik = "Jirka Marsik <jiri.marsik89@gmail.com>";
joachifm = "Joachim Fasting <joachifm@fastmail.fm>";