feat: add build_args ssh and target parameters

[ducminhle]

---

Changes are visible to end-users: yes

• Searched for relevant documentation and updated as needed: yes
• Breaking change (forces users to change their own code or config): no
• Suggested release notes appear below: yes

Test plan

• Update test cases
• Manual testing; please provide instructions so we can reproduce: With ssh arg, set

buildx(
    name = "base_image",
    ...
    ssh="default=$(SSH_AUTH_SOCK)"
    ...
    )

Run command

bazel build --define SSH_AUTH_SOCK=$SSH_AUTH_SOCK <target>

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