fix: changes the pip version compatible with python 2.7

[Akanshu-2u]

Description:

Docker build for analytics pipeline was failing because it attempted to install pip==21.2.1 on Python 2.7, but pip versions 21.0+ dropped support for Python 2.7.

Solution:

Updated COMMON_PIP_PACKAGES_PIP from pip==21.2.1 to pip==20.3.4 (the last pip version supporting Python 2.7) in the analytics pipeline Dockerfile.

Job:

Docker-analytics-pipeline-image-builder

Build successful:

Jira ticket:

BOMS-196

[Copilot]

Pull Request Overview

This PR fixes a Docker build failure in the analytics pipeline by downgrading the pip version from 21.2.1 to 20.3.4 to maintain compatibility with Python 2.7, as pip versions 21.0+ dropped support for Python 2.7.

• Updates pip version in Dockerfile environment variable to the last version supporting Python 2.7
• Resolves Docker build failures for the analytics pipeline image builder

---

_{Tip: Customize your code reviews with copilot-instructions.md. Create the file or learn how to get started.}