remove 15 min timeout from poll_job_status

[mmorgantaylor]

Description

The poll_job_status() function had a 15 minute timeout that was causing tests to pass after 15 minutes no matter whether the actual workflow succeeded or failed in Terra.

Here we remove this 15 minute timeout in the poll_job_status() function to allow workflows to proceed indefinitely until they complete.

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Checklist

If you can answer "yes" to the following items, please add a checkmark next to the appropriate checklist item(s) and notify our WARP team by tagging @broadinstitute/warp-admins in a comment on this PR.

• Did you add inputs, outputs, or tasks to a workflow?
• Did you modify, delete or move: file paths, file names, input names, output names, or task names?
• If you made a changelog update, did you update the pipeline version number?

[dsde-jenkins]

Can one of the admins verify this patch?

[github-actions]

Remember to squash merge!

[github-actions]

🔍Changelog Validation Results:

basename: missing operand
Try 'basename --help' for more information.
Comparing changelogs for pipelines that differ from the versions on 'origin/develop':
All changelog files are valid for this release.

[github-actions]

🔍Version Validation Results:

Comparing versions and changelogs for pipelines that differ from the versions on 'origin/staging':
All WDLs and changelog files appear to be valid for this release.

[github-actions]

Remember to squash merge!

[github-actions]

🔍Changelog Validation Results:

basename: missing operand
Try 'basename --help' for more information.
Comparing changelogs for pipelines that differ from the versions on 'origin/develop':
All changelog files are valid for this release.

[github-actions]

🔍Version Validation Results:

Comparing versions and changelogs for pipelines that differ from the versions on 'origin/staging':
All WDLs and changelog files appear to be valid for this release.