CLI flag for run command to raise exceptions to the caller

[mariuspod]

What I did

I've added a -r cli flag for the brownie run cli command which raises any exceptions to the caller instead of doing a system exit. I've noticed a system exit breaks the auto-capturing of exceptions with sentry because the excepthooks are not triggered at all.

With this addition I could verify that running a brownie script with the current sentry_sdk works and automatically captures any unhandled exceptions like expected.

How I did it

I've just modified the except blocks slightly to check for the flag and preserve the existing logic if it's not present.

How to verify it

$ echo "1/0" > scripts/fail.py
$ brownie run fail -r
Traceback (most recent call last):
  File "/usr/local/bin/brownie", line 8, in <module>
    sys.exit(main())
  File "/usr/local/lib/python3.9/site-packages/brownie/_cli/__main__.py", line 70, in main
    raise e
  File "/usr/local/lib/python3.9/site-packages/brownie/_cli/__main__.py", line 64, in main
    importlib.import_module(f"brownie._cli.{cmd}").main()
  File "/usr/local/lib/python3.9/site-packages/brownie/_cli/run.py", line 60, in main
    raise e
  File "/usr/local/lib/python3.9/site-packages/brownie/_cli/run.py", line 51, in main
    return_value, frame = run(
  File "/usr/local/lib/python3.9/site-packages/brownie/project/scripts.py", line 53, in run
    module = _import_from_path(script)
  File "/usr/local/lib/python3.9/site-packages/brownie/project/scripts.py", line 149, in _import_from_path
    _import_cache[import_str] = importlib.import_module(import_str)
  File "/usr/local/lib/python3.9/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1030, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
  File "<frozen importlib._bootstrap>", line 986, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 680, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 850, in exec_module
  File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed
  File "/app/scripts/fail.py", line 1, in <module>
    1/0
ZeroDivisionError: division by zero

Checklist

• I have confirmed that my PR passes all linting checks
• I have included test cases
• I have updated the documentation
• I have added an entry to the changelog