update helium to 0.10.8.1

modules/pkgs/helium.nix

@@ -2,11 +2,11 @@
   perSystem = { pkgs, ... }: {
     packages.helium = pkgs.appimageTools.wrapType2 rec {
       pname = "helium";
-      version = "0.10.6.1";
+      version = "0.10.8.1";
 
       src = pkgs.fetchurl {
         url = "https://github.com/imputnet/helium-linux/releases/download/${version}/${pname}-${version}-x86_64.AppImage";
-        hash = "sha256-6xqNRaP3aqitEseexRVEEjKkJClC0j1HHZoRGQanhSk=";
+        hash = "sha256-pN/Iw1ANggDOxxFb2CN436qbcrs8/bDcEqjZC80grQs=";
       };
 
       extraInstallCommands = let

modules/pkgs/zen-browser.nix

@@ -1,11 +1,11 @@
 {lib, ...}: {
   perSystem = {pkgs, ...}: let
     pname = "zen-browser";
-    version = "1.19.6b";
+    version = "1.19.3b";
 
     src = pkgs.fetchurl {
       url = "https://github.com/zen-browser/desktop/releases/download/${version}/zen-x86_64.AppImage";
-      hash = "sha256-rtY0P3IJ+Du63RfwVnWbhAJHyw/zHKUFXJbDRCyryoY=";
+      hash = "sha256-p00Irv2z6brDXMx3cr0234lOZZ2a7FmJMDzN494nzMw=";
     };
 
     appimageContents = pkgs.appimageTools.extract {inherit pname version src;};