Fix #254 Add built-in tokens_revoked/app_uninstalled event handlers

[seratch]

This pull request resolves #254 - refer to the issue for details.

Category (place an x in each of the [ ])

• slack_bolt.App and/or its core components
• slack_bolt.async_app.AsyncApp and/or its core components
• Adapters in slack_bolt.adapter
• Document pages under /docs
• Others

Requirements (place an x in each [ ])

Please read the Contributing guidelines and Code of Conduct before creating this issue or pull request. By submitting, you are agreeing to those rules.

• I've read and understood the Contributing Guidelines and have done my best effort to follow them.
• I've read and agree to the Code of Conduct.
• I've run ./scripts/install_all_and_run_tests.sh after making the changes.

[codecov]

Codecov Report

Merging #289 (5e2c3e0) into main (8babac6) will increase coverage by 0.10%.
The diff coverage is 100.00%.

❗ Current head 5e2c3e0 differs from pull request most recent head 2ab87ee. Consider uploading reports for the commit 2ab87ee to get more accurate results

@@            Coverage Diff             @@
##             main     #289      +/-   ##
==========================================
+ Coverage   91.35%   91.46%   +0.10%     
==========================================
  Files         164      166       +2     
  Lines        5135     5200      +65     
==========================================
+ Hits         4691     4756      +65     
  Misses        444      444              

Impacted Files	Coverage Δ
slack_bolt/app/app.py	87.10% <100.00%> (+0.48%)	⬆️
slack_bolt/app/async_app.py	94.23% <100.00%> (+0.24%)	⬆️
slack_bolt/listener/async_builtins.py	100.00% <100.00%> (ø)
slack_bolt/listener/builtins.py	100.00% <100.00%> (ø)
slack_bolt/logger/messages.py	87.27% <100.00%> (+0.48%)	⬆️

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[mwbrooks]

This is a really nice addition. I think it fits very well into the Bolt framework and ideal for anyone using Bolt's built-in OAuth store.

If it's well received, we should add it to Bolt-JS as well!

[seratch]

If it's well received, we should add it to Bolt-JS as well!

Yes, I am definitely going to do this next 💪