enhance(core): use `diagnostic::on_unimplemented` on rustc 1.78 and newer for async commands with references

[amrbashir]

[github-actions[bot]]

Package Changes Through eb02088ca976cb46e32b5622c2e6c3e1a52cc0bd

There are 7 changes which include tauri with patch, tauri-bundler with patch, tauri-cli with patch, @tauri-apps/cli with patch, tauri-runtime-wry with patch, tauri-macros with patch, @tauri-apps/api with patch

Planned Package Versions

The following package releases are the planned based on the context of changes in this pull request. | package | current | next | |----|----|----| | @tauri-apps/api | 2.0.3 | 2.0.4 | tauri-bundler | 2.0.4 | 2.0.5 | tauri-runtime-wry | 2.1.2 | 2.1.3 | tauri-macros | 2.0.2 | 2.0.3 | tauri | 2.0.6 | 2.0.7 | @tauri-apps/cli | 2.0.4 | 2.0.5 | tauri-cli | 2.0.4 | 2.0.5 |

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