Bump codecov from 3.6.5 to 3.7.1

[dependabot[bot]]

Bumps codecov from 3.6.5 to 3.7.1.

Commits

• 29dd5b6 3.7.1
• c0711c6 Switch from execSync to execFileSync (#180)
• 5f6cc62 Bump lodash from 4.17.15 to 4.17.19 (#183)
• 0c4d7f3 Merge pull request #182 from codecov/update-readme-badges
• cc5e121 Update depstat image and urls
• b44b44e Update readme with 400 error info (#181)
• bb79335 V3.7.0 (#179)
• 0d7b9b0 Remove 'x-amz-acl': 'public-read' header (#178)
• eeff4e1 Bump acorn from 5.7.3 to 5.7.4 (#174)
• eb8a527 Merge pull request #172 from RoboCafaz/bugfix/codebuild-pr-parser
• Additional commits viewable in compare view

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