Add default dimensions for OTEL metrics

[bprotopopov]

This allows one to add a number of custom dimensions to the published metrics. This may be necessary in order to analyze metrics along various dimensions, e.g. when exporting metrics to CloudWatch.

[evg-tso]

Thanks for the contribution @bprotopopov!
I've pushed an update to the CI to be able to verify PRs from forks.
Can you please rebase?

[bprotopopov]

Hi, @evg-tso, thanks for the quick response, rebased.

[github-actions]

Test Results

8 files  8 suites   4s ⏱️
1 tests 1 ✅ 0 💤 0 ❌
8 runs  8 ✅ 0 💤 0 ❌

Results for commit cbb49d5.

[evg-tso]

Awesome, now we just need to update the project.clj and the CHANGELOG.md.
Would you be able to bump to 1.1.0 as this is technically a new feature and update the CHANGELOG similarly to this? (Meaning adding a 1.1.0 section which is linking to this PR?

[bprotopopov]

Sorry for the delayed response. Looking at the https://github.com/AppsFlyer/aws-sdk-java-opentelemetry-metrics/pull/18/files#diff-06572a96a58dc510037d5efa622f9bec8519bc1beab13c9f251e97e657a9d4ed to bump the version.

[bprotopopov]

Hi, I am looking at the requested changes in CHANGELOG.md, and it appears that the diffs section at the bottom can only be added once the pull request is accepted (the diffs refer to changes in the AppsFlyer/aws-sdk-java-opentelemetry-metrics repo)? I am not clear on how I could add those/refer to them in my pull request. Also, I cannot find file project.clj in the repo, or any references to the file in the pull 18 example you refer to above.

Can you please clarify what I need to do?