fix(gnovm): change emit event package path to realm

[jinoosss]

Description

This PR improves how the std.emit function retrieves the package path when emitting events. Previously, it used the current package's path, but now it uses the current realm's path for more accurate event attribution.

Technical Background

This change is intended to emit events in Realm. In order to track meaningful events, it is necessary to be able to track events in the Realm contract.

Test Results

The newly added integration test retrieves the GRC20 token teller from the GRC20 Registry and transfers the token. During the transfer, it verifies that the transfer event occurs at the correct realm path (gno.land/r/demo/foo20).

[Gno2D2]

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[notJoon]

Could you resolve some CI errors (execpt merge requirements)? thank you 🙏

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 62.50000% with 3 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
gnovm/stdlibs/std/native.go	57.14%	2 Missing and 1 partial :warning:

:loudspeaker: Thoughts on this report? Let us know!

[thehowl]

closing in favour of #4436, re-open if you think this should be considered as a better approach.