lens: 4.2.4 -> 5.1.3

Lens does no longer ships its AppImages via GitHub. The new URL also
contains some more detailed build tag, indicating a date.

pkgs/applications/networking/cluster/lens/default.nix

@@ -2,12 +2,13 @@
 
 let
   pname = "lens";
-  version = "4.2.4";
+  version = "5.1.3";
+  build = "${version}-latest.20210722.1";
   name = "${pname}-${version}";
 
   src = fetchurl {
-    url = "https://github.com/lensapp/lens/releases/download/v${version}/Lens-${version}.x86_64.AppImage";
-    sha256 = "0fzhv8brwwl1ihx6jqq4pi77489hr6f9hpppqq3n8d2imjsqgvlw";
+    url = "https://api.k8slens.dev/binaries/Lens-${build}.x86_64.AppImage";
+    sha256 = "1iwwyqpn1x1m8n22f99snlhcbcr65i4przx697hlbpmnm40dw7q9";
     name="${pname}.AppImage";
   };
 
@@ -22,12 +23,12 @@ in appimageTools.wrapType2 {
     ''
       mv $out/bin/${name} $out/bin/${pname}
 
-      install -m 444 -D ${appimageContents}/kontena-lens.desktop $out/share/applications/${pname}.desktop
-      install -m 444 -D ${appimageContents}/usr/share/icons/hicolor/512x512/apps/kontena-lens.png \
-        $out/share/icons/hicolor/512x512/apps/${pname}.png
+      install -m 444 -D ${appimageContents}/lens.desktop $out/share/applications/${pname}.desktop
+      install -m 444 -D ${appimageContents}/usr/share/icons/hicolor/512x512/apps/lens.png \
+         $out/share/icons/hicolor/512x512/apps/${pname}.png
 
       substituteInPlace $out/share/applications/${pname}.desktop \
-        --replace 'Icon=kontena-lens' 'Icon=${pname}' \
+        --replace 'Icon=lens' 'Icon=${pname}' \
         --replace 'Exec=AppRun' 'Exec=${pname}'
     '';