chore(awgen): bump 0.3.1 -> 0.3.2

Upstream tagged v0.3.2 (5f97208) in alex/awgen. The fix prices allowed-IP
progress per progress instead of per whole route list; dependencies are
unchanged. cargoHash still moves because the crate version line in
Cargo.lock feeds the vendor staging hash.

Verified: nix build .#awgen is green, and result/bin/awgen --version
prints 0.3.2 (upstream now sets the crate version from the tag, so the
stale "prints 0.1.0" caveat from the 0.3 bump no longer applies).

packages/awgen/package.nix

@@ -6,17 +6,17 @@
 
 rustPlatform.buildRustPackage rec {
   pname = "awgen";
-  version = "0.3.1";
+  version = "0.3.2";
 
   src = fetchFromGitea {
     domain = "git.millerson.name";
     owner = "alex";
     repo = "awgen";
     rev = "v${version}";
-    hash = "sha256-yXkwUPqMCsukBp4hZfyhSxNyAvGGD7TFgSZUnMo+kr0=";
+    hash = "sha256-I1O91iir5mepW3EWN9PTWmhJXwLXpTKSQwTunEnUjC8=";
   };
 
-  cargoHash = "sha256-5ESwlVDX+coAYce5J19R3akCdQ/VqqV7CxFluTAlPvE=";
+  cargoHash = "sha256-RsOj3RbBybuNKMBtswsl/1cN5YKj+cCFu6ZtTbVRmG8=";
 
   passthru = {
     category = "Networking";