chore: Bump haskell grammar

jcs090218 · github-actions[bot] · commit 4f6d1eab6cfd · 2024-05-12T01:30:25.000Z
diff --git a/repos/haskell b/repos/haskell
@@ -1 +1 @@
-Subproject commit af32d884088ce7b74541b5e51820baa7e305caae
+Subproject commit a50070d5bb5bd5c1281740a6102ecf1f4b0c4f19
