fix(deps): update dependency parse-json to v5.2.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
parse-json	5.0.1 -> 5.2.0

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Release Notes

sindresorhus/parse-json

v5.2.0

Compare Source

• Export JSONError (#​26) 7bd7d22

v5.1.0

Compare Source

• Replace dependency json-parse-better-errors with fork json-parse-even-better-errors (#​23) 58852b4

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[coveralls]

Coverage remained the same at 100.0% when pulling 4e3d378 on renovate/parse-json-5.x into 984750f on master.

[rpl]

The tests are failure because parse-json has slightly changed the error message:

• https://travis-ci.org/github/mozilla/web-ext/jobs/720274564#L1002

(likely as a side effect of replacing the json-parse-better-errors previous dependency with a new json-parse-even-better-errors dependencies).

Before merging this PR, we will need to tweak the test case to pass with the new error message being raised on an json parsing errors.