grafana-loki: 3.2.1 -> 3.3.1 (#360603)

nixos/tests/loki.nix

···
       {
         services.loki = {
           enable = true;
-          configFile = "${pkgs.grafana-loki.src}/cmd/loki/loki-local-config.yaml";
+
+          # FIXME(globin) revert to original file when upstream fix released
+          # configFile = "${pkgs.grafana-loki.src}/cmd/loki/loki-local-config.yaml";
+          configFile = pkgs.runCommandNoCC "patched-loki-cfg.yml" { } ''
+            sed '/metric_aggregation/!b;n;/enable/d' "${pkgs.grafana-loki.src}/cmd/loki/loki-local-config.yaml" > $out
+          '';
         };
         services.promtail = {
           enable = true;

pkgs/servers/monitoring/loki/default.nix

···
 }:
 
 buildGoModule rec {
-  version = "3.2.1";
+  version = "3.3.1";
   pname = "grafana-loki";
 
   src = fetchFromGitHub {
     owner = "grafana";
     repo = "loki";
     rev = "v${version}";
-    hash = "sha256-PhvXuRWpOA+5sPiTSDEwpZ8KEfV/UHM2W6RnG9z9Sp0=";
+    hash = "sha256-oibZFCuwHtg/A7AJfNqGKyRFhPLdOkX8uULx2rc7Fs8=";
   };
 
   vendorHash = null;