Error encountered when running `etc/scripts/fetch-plugins.sh`

```
Adding dep: mingw-w64-x86_64-zlib@1.2.11-9
Loading Repo from 'https://formulae.brew.sh/api/formula-linux.json'
Traceback (most recent call last):
File "etc/scripts/homebrew.py", line 930, in
sys.exit(main())
File "etc/scripts/homebrew.py", line 693, in main
update_package(name='libarchive', osarch='x86_64_linux')
File "etc/scripts/homebrew.py", line 560, in update_package
binary_packages = repository.update_packages_index()
File "etc/scripts/homebrew.py", line 102, in update_packages_index
items = json.load(il)
File "/usr/lib/python3.6/json/__init__.py", line 299, in load
parse_constant=parse_constant, object_pairs_hook=object_pairs_hook, **kw)
File "/usr/lib/python3.6/json/__init__.py", line 354, in loads
return _default_decoder.decode(s)
File "/usr/lib/python3.6/json/decoder.py", line 339, in decode
obj, end = self.raw_decode(s, idx=_w(s, 0).end())
File "/usr/lib/python3.6/json/decoder.py", line 357, in raw_decode
raise JSONDecodeError("Expecting value", s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)
```