tests: enable socket access for `responses` 0.24+ compatibility

[palazzem]

Related Issues

• Closes #103

Proposed Changes:

After the change in responses 0.24.0 (https://github.com/getsentry/responses/pull/685/) all tests fail as socket.socket is accessed within the library. This change uses socket_enabled fixture from pytest-socket library so that any time an ElmoClient fixture is used, sockets are enabled.

This change should not have negative impacts as responses is still not making any call to external services.

Testing:

Run any test that access client fixture.

Extra Notes (optional):

n/a

Checklist

• [x] Related issues and proposed changes are filled
• [x] Tests are defining the correct and expected behavior
• [x] Code is well-documented via docstrings

[coveralls]

Pull Request Test Coverage Report for Build 6746757894

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 88.357%

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Totals
Change from base Build 6677072536:	0.0%
Covered Lines:	475
Relevant Lines:	541

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💛 - Coveralls