Fix SshV0 task vulnerabilities

[KonstantinTyukalov]

Task name: ShhV0

Description: Updated ssh2 & ssh2-sftp-client packages to fix vulnerabilities

Documentation changes required: N

Added unit tests: N

Attached related issue: N

Checklist:

• Task version was bumped - please check instruction how to do it
• Checked that applied changes work as expected - runned unit tests locally, it needs to smoke test

Risks analysis checklist:

• There are no risky dependency updates
• Changes have been tested
• Enough test coverage for changes and current test coverage for the task doesn't look poor
• We understand how tasks are working, how changes affect task behavior
• There are no breaking changes
• There are no other concerns
• I have not discovered any new uncovered test/use cases

TestCases:

• Used command "node make.js test --task SshV0 " all tests passed
• Used azure-pipelines-canary test for ssh task

Unit tests results:
SshV0UnitTestOutput.txt

[alexander-smolyakov]

LGTM, thanks!
Could you also share information about the testing done?

[Kozlov-Igor]

Tested successfully with self-hosted agent and containerized SSH server in Windows 10.