chore: % nix flake update && nix fmt

Updated nixpkgs, rust-overlay, and nix-fast-build to latest versions.

Author: yvan-sraka

flake.lock

@@ -12,16 +12,15 @@ let
       majorVersion = lib.versions.major postgresql.version;
       pkg = pkgs.buildEnv {
         name = "postgresql-${majorVersion}-${pname}";
-        paths =
-          [
-            postgresql
-            postgresql.lib
-            (installedExtension majorVersion)
-            (self.legacyPackages.${pkgs.system}."psql_${majorVersion}".exts.postgis)
-          ]
-          ++ lib.optional (postgresql.isOrioleDB) (
-            self.legacyPackages.${pkgs.system}."psql_orioledb-17".exts.orioledb
-          );
+        paths = [
+          postgresql
+          postgresql.lib
+          (installedExtension majorVersion)
+          (self.legacyPackages.${pkgs.system}."psql_${majorVersion}".exts.postgis)
+        ]
+        ++ lib.optional (postgresql.isOrioleDB) (
+          self.legacyPackages.${pkgs.system}."psql_orioledb-17".exts.orioledb
+        );
         passthru = {
           inherit (postgresql) version psqlSchema;
           installedExtensions = [ (installedExtension majorVersion) ];

nix/ext/tests/pgrouting.nix

@@ -1,6 +1,6 @@
 { self, ... }:
 {
-  flake.overlays.default = final: prev: {
+  flake.overlays.default = final: _prev: {
     # NOTE: add any needed overlays here. in theory we could
     # pull them from the overlays/ directory automatically, but we don't
     # want to have an arbitrary order, since it might matter. being