[Java] Add ADOT SigV4 Release Test

[liustve]

Background

We recently added the ADOT SigV4 exporter to the aws-otel-java-instrumentation repo that allows users to export spans directly the the X-Ray OTLP endpoint from their application instead of relying on a collector or agent.

Changes

Added workflow, terraform definitions, and validations

Notable differences in behaviour between Java and other languages for this use case

See Trace validation modifications commit under validator/src/main/resources/java/ec2/adot-sigv4. Differences are not limited to this commit, as the differences in logs were in the first commit.

• [LOG/TRACE] "aws.local.service" "service.name","cloud.provider", "cloud.region", "cloud.account.id", "cloud.platform" Are missing from attributes (aws.local.service appears if AppSignals is enabled.)
• [LOG/TRACE/METRICS] Any mention of ec2 has been replaced by generic
• [LOG/TRACE] http.method is now http.request.method
• [LOG/TRACE] http.url has been separated into url.scheme, server.address, url.path, url.query. Sometimes it's just url.full
• [TRACE] http.request.url and subsegments[0].http.request.url are both missing. This causes the URL Address field in the X-Ray console to be blank (from what I can tell)

Rollback Procedure

Revert

Testing

Successful run: link

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