chore(marmel): bump to 981b35b (main)

Track upstream main at 981b35b0d356e56de429ab4198e427ccfbe7d85f
(2026-10-17). Cargo.lock is unchanged between the two revisions, so
cargoHash stays; src hash regenerated by nix-update. Version string
follows nix-update's 0-unstable-* dated scheme now.

Both downstream patches still apply and upstream issues stay open
(Na1w/marmel#14, #13, fix PR #16 unmerged), so nix-overlay-pnb and
nix-overlay-nn2 remain blocked. Lib suite now passes at 1030 tests
with the same single DNS sandbox filter; comment updated.

packages/marmel/package.nix

@@ -9,14 +9,15 @@ rustPlatform.buildRustPackage rec {
   pname = "marmel";
   # Upstream publishes no git tags and no GitHub releases, and Cargo.toml still
   # says 1.0.0, so the version is meaningless and the source is tracked by
-  # branch head. Bump with nix-update (see passthru.updateScript).
-  version = "1.0.0";
+  # branch head, dated by nix-update's 0-unstable-* scheme. Bump with
+  # nix-update (see passthru.updateScript).
+  version = "0-unstable-2026-10-17";
 
   src = fetchFromGitHub {
     owner = "Na1w";
     repo = "marmel";
-    rev = "3f238ff217ee2e1033c937c840bd2d33ec57abc4";
-    hash = "sha256-ijSsUAJom/uIiE09PM1kfXqNVCRqnipAQo72KXlr8sQ=";
+    rev = "981b35b0d356e56de429ab4198e427ccfbe7d85f";
+    hash = "sha256-Z72o5LsjwTIk1EsiTYfNO+WIFzOSOEmCzzfyJKksYF4=";
   };
 
   cargoHash = "sha256-etqW3xcxkiNfkiPxl/Emt5pQCkNnoIhHFkX0Zqfs4rc=";
@@ -56,7 +57,7 @@ rustPlatform.buildRustPackage rec {
   # no-network build sandbox does not provide. landlock-nix-store.patch fixed the
   # exec half for both sandbox-exec tests: with it, the cross-directory rename
   # test runs for real (no SKIP printed by `integration_host`) and the lib suite
-  # passes at 966 tests with that single filter.
+  # passes at 1030 tests with that single filter.
   cargoTestFlags = [
     "--"
     "--test-threads=1"