(chore) Reduce timeout duration for E2E CI job to 15 minutes

[suubi-joshua]

Requirements

• This PR has a title that briefly describes the work done including the ticket number. If there is a ticket, make sure your PR title includes a conventional commit label. See existing PR titles for inspiration.
• My work conforms to the OpenMRS 3.0 Styleguide and design documentation.
• My work includes tests or is validated by existing tests.

Summary

This PR reduces timeout duration for E2E CI job from 1 hour to 15 minutes.

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[denniskigen]

Thanks, @suubi-joshua. Looks like there's still a few more places to go https://github.com/search?q=org%3Aopenmrs%20timeout-minutes&type=code.

[suubi-joshua]

Thanks, @suubi-joshua. Looks like there's still a few more places to go https://github.com/search?q=org%3Aopenmrs%20timeout-minutes&type=code.

I have some PRs open for these already
one open for admin tools @denniskigen openmrs/openmrs-esm-admin-tools#41

Then one for the template app openmrs/openmrs-esm-template-app#23
Then finally for the cohort builder app openmrs/openmrs-esm-cohortbuilder-app#70