Update tianon/buildkit:0.16
@@ -1 +1 @@
-sha256:adf6423273b973c804f0d8f2dc1ae2173d79dc73cc32b43b5bf5a8338c71fddd
+sha256:3f903889679d756c269d73c8c55cab682593f8aa79abac5e2a6a35be312f0174