flake: bump nixpkgs from 9e92285 to 767b0d3

Bumps [nixpkgs](https://github.com/NixOS/nixpkgs) from `9e92285` to `767b0d3`.
- [Commits](https://github.com/NixOS/nixpkgs/compare/9e92285f211dad236540fd617d7e30e0b99bc0e1...767b0d3ec98a143ad9ed7dfc0d5553510ac27133)

---
updated-dependencies:
- dependency-name: nixpkgs
  dependency-version: 767b0d3ec98a143ad9ed7dfc0d5553510ac27133
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

flake.lock

@@ -2,11 +2,11 @@
   "nodes": {
     "nixpkgs": {
       "locked": {
-        "lastModified": 1782948114,
-        "narHash": "sha256-AXmz9ho4Lud5CsbrZsuSVwpQZ4o5FgZ1chxBn5cJ8+0=",
+        "lastModified": 1783604885,
+        "narHash": "sha256-tzMgSkV7kljEkqIjlgV6F+n+xD+/a35Db8bs7a4BFAo=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "9e92285f211dad236540fd617d7e30e0b99bc0e1",
+        "rev": "767b0d3ec98a143ad9ed7dfc0d5553510ac27133",
         "type": "github"
       },
       "original": {