prometheus-wireguard-exporter: 3.1.0 -> 3.1.1

https://github.com/MindFlavor/prometheus_wireguard_exporter/releases/tag/3.1.1

This release adds a flag `-l` which takes an address where the exporter
is available. The default is `0.0.0.0` (previously, `0.0.0.0` was used
by default).

Please note that there are no dependency changes in Cargo and therefore
the cargo hash didn't change.

pkgs/servers/monitoring/prometheus/wireguard-exporter.nix

@@ -2,13 +2,13 @@
 
 rustPlatform.buildRustPackage rec {
   pname = "wireguard-exporter";
-  version = "3.1.0";
+  version = "3.1.1";
 
   src = fetchFromGitHub {
     owner = "MindFlavor";
     repo = "prometheus_wireguard_exporter";
     rev = version;
-    sha256 = "0hl82cg6cijk3xf35cgi4v14gmxk3fj4c3z1x5hrs2i0j1i26ilw";
+    sha256 = "1cc36bngpjq8138f98d2dl0imgisiph7xmw1i7csmjs03b4pnfcx";
   };
 
   cargoSha256 = "1ndb33bi08j40b4jkj4q7d3k0cw5fscz2gc2cc3134nbs2r7jamk";