feat(base): add telemetry to base images and enable telemetry tests

[sallyseok]

Purpose

The base DLC images (cu129/cu130/cu132) were the only images missing DLC telemetry, and the framework-agnostic telemetry test (test/telemetry/test_telemetry.py) was not wired into the base pipeline. This PR adds telemetry to the base Dockerfiles and enables the shared telemetry test for them.

Changes:

• Telemetry in Dockerfiles — added the telemetry block to the runtime and devel stages of all three base Dockerfiles, following the docker/vllm/Dockerfile.amzn2023 pattern: copy deep_learning_container.py, render bash_telemetry.sh from the template via FRAMEWORK / FRAMEWORK_VERSION / CONTAINER_TYPE build-args, source it from /etc/bashrc + /root/.bashrc, and set DLC_CONTAINER_TYPE.
• Runtime deps — the telemetry script imports botocore (EC2 tagging) and packaging (version validation), neither of which was present in the base images. Added both to all three pyproject.toml files and regenerated the uv.locks.
• CI wiring — added a release-gated telemetry-test job to base.pipeline.yml, plus run-telemetry-test inputs, telemetry-test-change path filters, and build-change triggers across the three base PR callers. Autorelease inherits the pipeline default (true).
• Rename base_dlc → base — the base config was the only one using framework: "base_dlc", but the telemetry script's argparse only ever accepted "base". Renamed across configs, sanity-test conditions, PR path filters, and the security allowlist dir/file. This is what makes --framework base valid for the shared test, and the change is fully self-contained (nothing external derives from metadata.framework for base images).
• Docs — minor wording tweaks in docs/base/index.md to keep the docs site consistent with the public ECR gallery docs.

Test Plan

• pre-commit run --all-files on the changed files (passes).
• Validated all edited workflow/config YAML parses.
• Confirmed bash_telemetry.sh renders from the template with no leftover {{...}} markers for FRAMEWORK=base.
• Confirmed the telemetry script's argparse accepts base and rejects base_dlc.
• The telemetry-test job (build → telemetry-environment + telemetry-instance) will exercise the image end-to-end in CI.

Test Result

Pending CI on this PR.

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PR Checklist

• I ran pre-commit run --all-files locally before creating this PR.