feat(amazonq): pass workspaceIdentifier when initializing AmazonQ lan…

[LiGaCu]

Problem

AmazonQ LSP needs an identifier for the IDE workspace, which should be stable and unique for each workspace, regardless of IDE restarts or system reboots.

Solution

Use ExtensionContext.storageUri as such an identifier and pass it when initializing AmazonQ language server.

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[github-actions]

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[LiGaCu]

The failed check is an unreliable test: #7187