Automatically add untriaged label on issues

[peternied]

Description

Sometimes when new issues are opened, they don't use the template or are transfered in from another repo, or even are reopened when we ran triage slightly differently. This automation adds the untriaged tag if any of these states are applied.

Coming from

• Add automatic labeling section with template examples, and a github workflow to add 'untriaged' label on new issues .github#111

Testing

On my fork of this repo I enabled issues and created a couple and they were automatically tagged on open [1] and reopen [2] by the github action bot for various scenarios [2].

[1] peternied/opensearch-project.github#4
[2] peternied/opensearch-project.github#6
[3] https://github.com/peternied/.github/actions

Documentation

Note; I'm not adding any documentation on this tool because it automates everything that we were doing manually and didn't have documented. Less documentation feels better in my book, but definitely open to other opinions, what do you think the documentation would look like?

Check List

• New functionality includes testing
• New functionality has been documented
• Commits are signed per the DCO using --signoff

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.
For more information on following Developer Certificate of Origin and signing off your commits, please check here.

[codecov-commenter]

Codecov Report

Merging #2297 (02d505c) into main (063c1e9) will decrease coverage by 0.04%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##               main    #2297      +/-   ##
============================================
- Coverage     61.02%   60.98%   -0.05%     
+ Complexity     3267     3263       -4     
============================================
  Files           259      259              
  Lines         18337    18337              
  Branches       3248     3248              
============================================
- Hits          11191    11182       -9     
- Misses         5561     5565       +4     
- Partials       1585     1590       +5     

Impacted Files	Coverage Δ
...urity/ssl/transport/SecuritySSLNettyTransport.java	62.36% <0.00%> (-4.31%)	⬇️
...earch/security/ssl/util/SSLConnectionTestUtil.java	93.18% <0.00%> (-2.28%)	⬇️
.../dlic/auth/ldap2/LDAPConnectionFactoryFactory.java	57.46% <0.00%> (-1.50%)	⬇️
...a/org/opensearch/security/tools/SecurityAdmin.java	36.48% <0.00%> (-0.12%)	⬇️

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[RyanL1997]

I can also create a PR for security-dashboards-repo of applying this automation.