jenkins: remove coconnor as maintainer (#411012)

Author: Aleksanaa

nixos/tests/jenkins.nix

@@ -11,7 +11,6 @@ import ./make-test-python.nix (
     meta = with pkgs.lib.maintainers; {
       maintainers = [
         bjornfor
-        coconnor
         domenkozar
       ];
     };

pkgs/by-name/je/jenkins/package.nix

@@ -80,7 +80,6 @@ stdenv.mkDerivation (finalAttrs: {
     sourceProvenance = with sourceTypes; [ binaryBytecode ];
     license = licenses.mit;
     maintainers = with maintainers; [
-      coconnor
       earldouglas
       nequissimus
     ];