fix docker file

[Yunnglin]

PR type

• Bug Fix
• New Feature
• Document Updates
• More Models or Datasets Support

PR information

Write the detail information belongs to this PR.

Experiment results

Paste your experiment result here(if needed).

[Copilot]

Pull request overview

Fixes a Dockerfile build issue in the git checkout step by correctly terminating a multi-line RUN instruction.

Changes:

• Remove the trailing line-continuation (\) after git checkout --track "$LATEST_RELEASE" to prevent subsequent Dockerfile lines from being interpreted as part of the same shell command.

[gemini-code-assist]

Code Review

This pull request removes an unnecessary trailing backslash from the git checkout command in the Dockerfile, which cleans up the multi-line RUN instruction. I have no feedback to provide as there were no review comments to evaluate.