feat: adds gcp metadata provider support to cloudmeta package

[VAveryanov8]

This adds gcp metadata provider support to cloudmeta package.

This changes has been manually tested on gcp node in lab env.

Fixes: #4128

P.S. retries are handled by gcp sdk, here is the note from documentation of GetWithContext(...)method.

Without an extra deadline in the context this call can take in the worst case, with internal backoff retries, up to 15 seconds (e.g. when server is responding slowly). Pass context with additional timeouts when needed.

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Please make sure that:

• Code is split to commits that address a single change
• Commit messages are informative
• Commit titles have module prefix
• Commit titles have issue nr. suffix

[VAveryanov8]

This pr depends on #4154

[Michal-Leszczynski]

LGTM!