otel/8: add ExecutionOtelPlugin conformance cases

[zhongkechen]

Summary

• add otel-20 through otel-22 for successful, resumed, and retried execution-view traces
• assert the terminal Workflow root, operation/attempt hierarchy, and links to Lambda invocation spans across JavaScript and Python
• exercise JavaScript SDK main and pin Python examples to feat(otel): add ExecutionOtelPlugin with Workflow-rooted trace hierarchy aws-durable-execution-sdk-python#576 at 6ff4e2e8fecd4530e55959a479c20ca458d307e6
• declare the execution view unsupported in Java until ExecutionOtelPlugin is available there

Stack

• stacked on otel/7: validate SDK telemetry with an S3 collector #24
• Python coverage depends on feat(otel): add ExecutionOtelPlugin with Workflow-rooted trace hierarchy aws-durable-execution-sdk-python#576

Validation

• hatch run test:all (172 passed)
• hatch run types:check
• hatch run yaml:lint
• hatch fmt --check packages scripts
• hatch run dist:all
• TypeScript typecheck and Rollup build against JavaScript SDK main at 84d05d4
• Python plugin import and constructor smoke check against PR 576 head

[ayushiahjolia]

Are we going to update this after launch?

[github-actions]

Codex AI review

• [P1] Count execution-view invocation spans correctly — packages/aws-durable-execution-conformance-tests-otel/test-requirements/otel-execution/otel-execution-2.yaml:27
minimum_invocations uses _invocation_count(), which only recognizes lowercase invocation, while the new execution-view assertions use Invocation. Cases 2, 3, 9, 10, 11, 17, and 18 will report zero canonical invocations. Normalize the name or recognize both forms, and add an execution-view count test.

• [P2] Prevent hosted Python stacks from colliding across suites — .github/workflows/python-opentelemetry.yml:33
  Including the suite in the concurrency group allows invocation and execution dispatches to run together, but Datadog and Dash0 still use shared stack names. Concurrent runs can race while deploying different OtelSuite values. Add the suite suffix to those test names or serialize Python OTel workflows across suites.

Reviewed commit 677dab35dca177d4a0456e9c7777d83cdad7e074. Workflow run