flake.nix: bump pvv-nettsiden

flake.lock

@@ -387,11 +387,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1767906725,
+        "lastModified": 1768222066,
-        "narHash": "sha256-AZpNzcnbl855mqemSrWbYl2mEgngC2lmiI6yiszEgQw=",
+        "narHash": "sha256-wH5dWUjbXqLMuErhNQqNPOWvpk/sRyeMfVJrWRpd71M=",
         "ref": "main",
-        "rev": "65118b6abebd339e071c38f00a23b92dbbb72b38",
+        "rev": "16c9b610ce963c6872abf229804e5336fca7d6f8",
-        "revCount": 537,
+        "revCount": 538,
         "type": "git",
         "url": "https://git.pvv.ntnu.no/Projects/nettsiden.git"
       },