style(treewide): Apply linter suggestions

configuration/services/metrics/exporters.nix

@@ -74,7 +74,7 @@ in
         listenAddress = "127.0.0.1";
         group = "nginx";
 
-        settings.namespaces = lib.mapAttrsToList (name: virtualHost: {
+        settings.namespaces = lib.mapAttrsToList (name: _: {
           inherit name;
           metrics_override.prefix = "nginxlog";
           namespace_label = "vhost";

configuration/services/metrics/options.nix

@@ -38,7 +38,7 @@ in
     services.victoriametrics.scrapeConfigs = mkOption {
       type = types.attrsOf (
         types.submodule (
-          { name, self, ... }:
+          { name, ... }:
           {
             options = {
               job_name = mkOption {
@@ -212,7 +212,7 @@ in
 
     services.victoriametrics.scrapeConfigs =
       let
-        allExporters = lib.mapAttrs (name: exporter: { inherit (exporter) listenAddress port; }) (
+        allExporters = lib.mapAttrs (_: exporter: { inherit (exporter) listenAddress port; }) (
           (lib.filterAttrs (
             name: exporter:
             # A bunch of deprecated exporters that need to be ignored

configuration/services/metrics/victorialogs.nix

@@ -1,8 +1,4 @@
-{
-  config,
-  lib,
-  ...
-}:
+{ config, lib, ... }:
 let
   cfg = config.services.victorialogs;
 in