Bump hed-specification version

IanCa · IanCa · commit 840bd4b39d74 · 2023-08-31T17:30:21.000-05:00
diff --git a/spec_tests/hed-specification b/spec_tests/hed-specification
@@ -1 +1 @@
-Subproject commit 25a8b2a69fe01b745c3f0fc8f4fa56d5b7e12aeb
+Subproject commit 8f1c014062f629dc7b88d625fbee14f4c88455ba
