Bump stdarch submodule

Amanieu · Amanieu · commit c209b5009669 · 2021-05-08T19:40:27.000+01:00
diff --git a/stdarch b/stdarch
@@ -1 +1 @@
-Subproject commit 19f5459dd0f89e466b7bcaa0f69ecca90f21a4d1
+Subproject commit 6c4f4e1990b76be8a07bde1956d2e3452fd55ee4

Original file line number	Diff line number	Diff line change
`@@ -1 +1 @@`
`1`		`-Subproject commit 19f5459dd0f89e466b7bcaa0f69ecca90f21a4d1`
	`1`	`+Subproject commit 6c4f4e1990b76be8a07bde1956d2e3452fd55ee4`