Raise instr limit for x86_64-android

It's erroneously reporting a failure
because of int3 padding used by LLVM.
Ideally a proper fix would land, but for now: kludge.

Author: workingjubilee

ci/docker/x86_64-linux-android/Dockerfile

@@ -16,6 +16,8 @@ ENV ANDROID_ARCH=x86_64
 COPY android-install-ndk.sh /android/
 RUN sh /android/android-install-ndk.sh
 
+ENV STDARCH_ASSERT_INSTR_LIMIT=30
+
 # We do not run x86_64-linux-android tests on an android emulator.
 # See ci/android-sysimage.sh for informations about how tests are run.
 COPY android-sysimage.sh /android/