feat: publish emulator image directly from testing library

[SilanHe]

Issue #, if available:

Description of changes: Create emulator image from the python testing library. For each release, we should update the version in the pyproject.poml file in the emulator folder. The image tag will be the aws-durable-sdk-python-testing version with v prefixing it, e.g. v1.1.1.

Testing

This was tested directly in the feat/publish-emulator-image branch, where the ecr-release.yml github action was set up to run on push into the branch. You can check past runs of the github actions in the Actions tab.

Here is the latest/last test: https://github.com/aws/aws-durable-execution-sdk-python-testing/actions/runs/22509453104/job/65215491701

Here is the public gallery where the images are published: https://gallery.ecr.aws/durable-functions/aws-durable-execution-emulator

Dependencies

If this PR requires testing against a specific branch of the Python Language SDK (e.g., for unreleased changes), uncomment and specify the branch below. Otherwise, leave commented to use the main branch.

By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.

[bchampp]

🤖 Emulator PR Created

A draft PR has been created with locked dependencies:

➡️ https://github.com/aws/aws-durable-execution-emulator/pull/401

The emulator will build binaries using the exact testing SDK commit locked in uv.lock.

[bchampp]

🔄 Emulator PR Updated

The emulator PR has been updated with locked dependencies:

➡️ https://github.com/aws/aws-durable-execution-emulator/pull/401

[bchampp]

🔄 Emulator PR Updated

The emulator PR has been updated with locked dependencies:

➡️ https://github.com/aws/aws-durable-execution-emulator/pull/401

[bchampp]

🔄 Emulator PR Updated

The emulator PR has been updated with locked dependencies:

➡️ https://github.com/aws/aws-durable-execution-emulator/pull/401

[bchampp]

🔄 Emulator PR Updated

The emulator PR has been updated with locked dependencies:

➡️ https://github.com/aws/aws-durable-execution-emulator/pull/401

[bchampp]

🔄 Emulator PR Updated

The emulator PR has been updated with locked dependencies:

➡️ https://github.com/aws/aws-durable-execution-emulator/pull/401

[bchampp]

🔄 Emulator PR Updated

The emulator PR has been updated with locked dependencies:

➡️ https://github.com/aws/aws-durable-execution-emulator/pull/401

[SilanHe]

note that the 3.14 build can be stuck sometimes. I had retry it a few times before it succeeded. It's unrelated to the changes made in this PR.