Increase test timeout to 30 minutes

[HenningSE]

What does the code in this PR do / what does it improve?

This PR sets the test timeout (from 15 minutes) to 30 minutes.

[coveralls]

Pull Request Test Coverage Report for Build 9107572503

Details

• 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 71.506%

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Totals
Change from base Build 9107563545:	0.0%
Covered Lines:	2108
Relevant Lines:	2948

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💛 - Coveralls

[HenningSE]

I merged the PR now as it just increases the test time-out durations. Noting controversial.