chore: Bump nix grammar

jcs090218 · github-actions[bot] · commit dfab340e97d1 · 2025-07-20T02:32:00.000Z
diff --git a/repos/nix b/repos/nix
@@ -1 +1 @@
-Subproject commit cd4f6594508c820dca196d931c6bd4d21ef18520
+Subproject commit ea1d87f7996be1329ef6555dcacfa63a69bd55c6
