packaging(nix): release data for 2.26.0, hashes build-verified in CI

Lifted from the Update Nix hashes run, which builds the derivations on a
Nix runner before reporting. The bot's PR (#563) is redundant once these
land on main and gets closed.

Author: adibhanna

packaging/nix/release-data.json

@@ -1,7 +1,7 @@
 {
-  "version": "2.25.0",
-  "hash": "sha256-Sdyl5b8IeshmstXQqUX1YbWehCaUrKELU2FiTW4xm7g=",
-  "npmDepsHash": "sha256-qW7G+zZCmFMR9pKdLelI+jfHyuU1/cTx1hTmzM9HRc4=",
+  "version": "2.26.0",
+  "hash": "sha256-rwUpa3yDasvKQcOYCcCX4I41052GXtJF9iai8LjeIfQ=",
+  "npmDepsHash": "sha256-6k6oy3GyVPU2UgJGDhXn8XNm1peEURE/ZTArwq95tYg=",
   "vendorHash": "sha256-ZdOHC2JldvnKSDUFnBUJrKD4F1IWfvYJBksgeDnU9cw=",
-  "desktopHash": "sha256-SNayFDm7az0mpgMw0qk3RjpgA3769/dO97rWvJgKEzk="
+  "desktopHash": "sha256-QFG+7pW3ijj6G/DQ5ndTrVkXTdXpUtWgfC6A7X5Sxsw="
 }