Segfault importing numba (reloaded)

Reviving #220, loading `numba` gives me a segfault:

```
using PyCall

py"""
import numba
"""
```
Output:
```
signal (11): Segmentation fault
in expression starting at /home/gboehl/bla.jl:3
_ZN4llvm16TargetPassConfig7addPassEPNS_4PassEbb at /usr/bin/../lib/libLLVM-10.so (
unknown line)
unknown function (ip: 0x22)
_ZTSN4llvm19MachineRegisterInfo8DelegateE at /usr/bin/../lib/libLLVM-10.so (unknow
n line)
Allocations: 3802472 (Pool: 3801514; Big: 958); GC: 5
[1] 98035 segmentation fault (core dumped) julia
```
Running arch linux with Julia version:
```
Julia Version 1.6.1
Commit 6aaedecc44* (2021-04-23 05:59 UTC)
Platform Info:
OS: Linux (x86_64-pc-linux-gnu)
CPU: Intel(R) Core(TM) i7-8650U CPU @ 1.90GHz
WORD_SIZE: 64
LIBM: libopenlibm
LLVM: libLLVM-11.1.0 (ORCJIT, skylake)
```
with `PyCall` version:
```
Status `~/.julia/environments/v1.6/Project.toml`
[438e738f] PyCall v1.92.3
```
Same in Python for
```
from julia import Main
import numba
```
Numba version is 0.53.1. on Python 3.9.5.

A similar issue is opened for pyjulia: https://github.com/JuliaPy/pyjulia/issues/443

Any help is much appreciated!