Implement new method Resolve of kopia's fs.Symlink

[viveksinghggits]

Change Overview

We have a mock type in kanister that implements kopia's fs.Symlink interface. Since this interface was recently modified to have a new method the mock type that we have in Kanister started to not implement that.
This commit makes sure that we add a dummy implementation of the type.

Pull request type

Please check the type of change your PR introduces:

• 🚧 Work in Progress
• 🌈 Refactoring (no functional changes, no api changes)
• 🐹 Trivial/Minor
• 🐛 Bugfix
• 🌻 Feature
• 🗺️ Documentation
• 🤖 Test
• 🏗️ Build

[mergify]

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[pavannd1]

@Mergifyio requeue

[mergify]

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[mergify]

This pull request has been removed from the queue for the following reason: pull request dequeued.

Pull request #3280 has been dequeued. The pull request rule doesn't match anymore. The following conditions don't match anymore:

• all of:
  • label=kueue.

You should look at the reason for the failure and decide if the pull request needs to be fixed or if you want to requeue it.

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