chore: Bump nix grammar

jcs090218 · github-actions[bot] · commit 10c4e7d6f011 · 2024-09-29T01:54:30.000Z
diff --git a/repos/nix b/repos/nix
@@ -1 +1 @@
-Subproject commit 537095ddc80cf610fa75a2a0149fe9799b011014
+Subproject commit fcf1857e254ab654e0fb73fe9706e33c52e79a5c
