fix: adjust tunnellifetime to 1 hour

[matt-primrose]

PR Checklist

• [ ] Unit Tests have been added for new changes
• [ ] API tests have been updated if applicable
• [ ] All commented code has been removed
• [ ] If you've added a dependency, you've ensured license is compatible with Apache 2.0 and clearly outlined the added dependency.

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If the there are associated PRs in other repositories, please link them here (i.e. open-amt-cloud-toolkit/repo#365 )