Bump coveralls from 0.8.22 to 0.8.23
Bump coveralls from 0.8.22 to 0.8.23

Bumps [coveralls](https://coveralls.io) from 0.8.22 to 0.8.23.

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
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