update micropython submodule

dlech · dlech · commit 13fc0063fe88 · 2025-08-07T15:32:44.000-05:00
Backport changes to fix a compile error with newer GCC versions and add
support for piping input from stdin and output to stdout.
diff --git a/micropython b/micropython
@@ -1 +1 @@
-Subproject commit a327cfc05f2c4928f3fb976e756227b4ba6a3bae
+Subproject commit 706a831ed1d18905c344fb352e7c36ae221093e4
