[repo] Release request issue template & automation

[CodeBlanch]

Changes

• Adds a new issue template for "Release request" which can be used to initiate a release from an issue

Details

We have a prepare-release workflow with a dispatch trigger which can be used to automate component releases out of this repo. The challenge is only writers/approvers and admins/maintainers can kick that off. Owners of components who do not have at least writer permission cannot use the automation.

What this PR does is add an issue template for requesting a release because... everyone can create issues!

• If a release request is opened by an approver/writer or maintainer/admin, the bot will automatically kick off the prepare release workflow.

• If a release request is opened for a component by a user who is listed as an owner of that component in component_owners.yml, the bot will automatically kick off the release workflow.

• If a release request is opened by a random user, the bot will tag component owners, approvers/writer, and maintainers/admins who may "approve" the process by using a command ("/PrepareRelease").

Here are some test runs:

• A release request opened by a random user and being approved by a component owner: [release request] OneCollector 1.10.0-rc.1 CodeBlanchOrg/opentelemetry-dotnet-contrib#42

• A release request being opened by a component owner: [release request] OneCollector 1.10.0-rc.2 CodeBlanchOrg/opentelemetry-dotnet-contrib#44

• Testing invalid inputs: [release request] negative tests CodeBlanchOrg/opentelemetry-dotnet-contrib#46

Note: Need to update RELEASING.md with instructions but I'll do that as a follow-up.

Merge requirement checklist

• CONTRIBUTING guidelines followed (license requirements, nullable enabled, static analysis, etc.)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 70.07%. Comparing base (71655ce) to head (78fd12f).
Report is 440 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2080      +/-   ##
==========================================
- Coverage   73.91%   70.07%   -3.85%     
==========================================
  Files         267      332      +65     
  Lines        9615    12942    +3327     
==========================================
+ Hits         7107     9069    +1962     
- Misses       2508     3873    +1365     

Flag	Coverage Δ
unittests-Exporter.Geneva	53.32% <ø> (?)
unittests-Exporter.InfluxDB	95.88% <ø> (?)
unittests-Exporter.Instana	71.24% <ø> (?)
unittests-Exporter.OneCollector	94.32% <ø> (?)
unittests-Exporter.Stackdriver	75.73% <ø> (?)
unittests-Extensions	88.57% <ø> (?)
unittests-Extensions.AWS	83.41% <ø> (?)
unittests-Extensions.Enrichment	100.00% <ø> (?)
unittests-Instrumentation.AWS	84.78% <ø> (?)
unittests-Instrumentation.AWSLambda	88.92% <ø> (?)
unittests-Instrumentation.AspNet	76.73% <ø> (?)
unittests-Instrumentation.AspNetCore	85.27% <ø> (?)
unittests-Instrumentation.ConfluentKafka	14.12% <ø> (?)
unittests-Instrumentation.ElasticsearchClient	79.87% <ø> (?)
unittests-Instrumentation.EntityFrameworkCore	55.49% <ø> (?)
unittests-Instrumentation.EventCounters	76.36% <ø> (?)
unittests-Instrumentation.GrpcNetClient	79.61% <ø> (?)
unittests-Instrumentation.Hangfire	93.58% <ø> (?)
unittests-Instrumentation.Http	82.06% <ø> (?)
unittests-Instrumentation.Process	100.00% <ø> (?)
unittests-Instrumentation.Quartz	78.94% <ø> (?)
unittests-Instrumentation.Runtime	100.00% <ø> (?)
unittests-Instrumentation.SqlClient	90.90% <ø> (?)
unittests-Instrumentation.StackExchangeRedis	69.92% <ø> (?)
unittests-Instrumentation.Wcf	48.91% <ø> (?)
unittests-PersistentStorage	65.78% <ø> (?)
unittests-Resources.AWS	77.93% <ø> (?)
unittests-Resources.Azure	82.35% <ø> (?)
unittests-Resources.Container	72.41% <ø> (?)
unittests-Resources.Gcp	72.54% <ø> (?)
unittests-Resources.Host	73.94% <ø> (?)
unittests-Resources.OperatingSystem	77.20% <ø> (?)
unittests-Resources.Process	100.00% <ø> (?)
unittests-Resources.ProcessRuntime	77.08% <ø> (?)
unittests-Sampler.AWS	87.61% <ø> (?)

Flags with carried forward coverage won't be shown. Click here to find out more.

see 359 files with indirect coverage changes

[Kielek]

Great improvement!

[CodeBlanch]

Test failures from SQL seem unrelated, merged.

See: #2086