todiff: use sri hash

pkgs/applications/misc/todiff/default.nix

···
     owner = "Ekleog";
     repo = "todiff";
     rev = version;
-    sha256 = "1y0v8nkaqb8kn61xwarpbyrq019gxx1f5f5p1hzw73nqxadc1rcm";
+    hash = "sha256-leXAmurYjsM/DLe44kLvLwWAs183K96DsRMtrKZFG/g=";
   };
 
-  cargoSha256 = "0vrn1vc3rwabv6l2r1qb7mkcxbp75q79bfl3rxhyi51ra3ij507r";
+  cargoHash = "sha256-+YAi41A5lOhhz4O6lQ4u567OZj0Lhyyo2UvxPNgONm8=";
 
   checkFeatures = [ "integration_tests" ];