Build number should not be parsed as integer

[nelsonsilva]

Currently the build number option is parsed as an integer (parseInt(pluginOptions.buildNumber, 10)) but in Sauce this is a "string".
When setting up CI on branches, it is useful to complement the build with extra information so perhaps there's no real reason to enforce it as a number.

[stale]

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[stale]

This issue has been automatically closed after being marked stale. If you're still facing this problem with the above solution, please comment and we'll reopen!