[MNT] Switched to lifespan events

[samadpls]

• Closes Switch deprecated startup events to lifespan events #152

Changes proposed in this pull request:

• Replace startup and shutdown events with lifespan events

Checklist

• PR has an interpretable title with a prefix ([ENH], [FIX], [REF], [TST], [CI], [MNT], [INF], [MODEL], [DOC]) (see https://neurobagel.org/contributing/pull_requests for more info)
• PR has a label for the release changelog or skip-release (to be applied by maintainers only)
• PR links to GitHub issue with mention Closes #XXXX
• Tests pass
• Checks pass

For new features:

• Tests have been added

For bug fixes:

• There is at least one test that would fail under the original bug conditions.

[coveralls]

Pull Request Test Coverage Report for Build 8746974931

Details

• 15 of 15 (100.0%) changed or added relevant lines in 1 file are covered.
• 25 unchanged lines in 3 files lost coverage.
• Overall coverage decreased (-4.1%) to 95.707%

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Files with Coverage Reduction	New Missed Lines	%
app/main.py	3	91.3%
app/api/crud.py	6	90.0%
app/api/utility.py	16	85.84%

Totals
Change from base Build 8712149137:	-4.1%
Covered Lines:	602
Relevant Lines:	629

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💛 - Coveralls

[samadpls]

@alyssadai , could you please review it whenever its convenient for you…

[alyssadai]

Hey @samadpls, thanks a lot for your PR, and sorry for the very long delay in review. The dev team has been unusually swamped over the past while given some urgent internal project tasks.

One of the maintainers get back to you as soon as we can. Thanks so much for your patience!

[samadpls]

Closing this PR due to its inactive status. I'd love to continue working on it if it receives reviews in the future. Thank you for the opportunity😊

[surchs]

@samadpls hey, that's fair - sorry this didn't work out as quickly as we would have liked here. We aim to have reviews come in quicker normally, but I think your PR slipped through the cracks because it was a busy time with many priorities.

Please do stay in touch and feel very welcome to contribute again on our repos! We'll make sure to stay on top of this in the future (we now have a "Community" section in our project board to help with that).