[INLONG-12016][SDK] Add Python Dataproxy SDK compile Dockerfile

[yfsn666]

Fixes #12016

Motivation

Provides a Python Dataproxy SDK compile Dockerfile to help users quickly build the Python SDK.

Modifications

Add a directory docker in dataproxy-sdk-python which contains Dockerfile and related files. And optimize the relevant build files.

Verifying this change

(Please pick either of the following options)

• [x] This change is a trivial rework/code cleanup without any test coverage.

• [ ] This change is already covered by existing tests, such as: (please describe tests)

• [ ] This change added tests and can be verified as follows:

  (example:)

  • Added integration tests for end-to-end deployment with large payloads (10MB)
  • Extended integration test for recovery after broker failure

Documentation

• Does this pull request introduce a new feature? no