Update Gutenberg ref with merge commit

fluiddot · fluiddot · commit a1a1f49a65e0 · 2021-05-26T11:52:55.000+02:00
The reference is pointing to the next commit of the merge commit because it includes fixes for passing PR checks.
diff --git a/gutenberg b/gutenberg
@@ -1 +1 @@
-Subproject commit 2972871d412f7a4c96fb5d8fadcd39b0fcdeca9f
+Subproject commit 20dab8e233ae08dfa2695059b63e58cc2b28b97b
