chore: checkpoint before Python removal

vendor/bytes/ci/miri.sh

@@ -0,0 +1,13 @@
+#!/bin/bash
+set -e
+
+rustup component add miri
+cargo miri setup
+
+export MIRIFLAGS="-Zmiri-strict-provenance"
+
+cargo miri test
+cargo miri test --target mips64-unknown-linux-gnuabi64
+
+# run with wrapping integer overflow instead of panic
+cargo miri test --release