update go version to v1.26.4

[Q7DF1]

No description provided.

[gemini-code-assist]

Code Review

This pull request updates the Go version to 1.26.4 and adds the -checklinkname=0 flag to the Go linker flags in app/build.gradle.kts. Feedback is provided regarding the use of -checklinkname=0, which disables strict linker checks and introduces stability and compatibility risks. It is recommended to update the dependencies causing this issue or at least document this workaround with a TODO comment for future removal.

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[gemini-code-assist]

Using -checklinkname=0 disables the Go linker's strict checks for unallowed //go:linkname directives. While this serves as a temporary workaround to get the build passing, it introduces stability and maintainability risks:

1. Stability Risk: It allows linking against internal, unexported Go runtime/standard library APIs. These internal APIs are not covered by Go's compatibility promise and can change or be removed in any Go release, potentially causing runtime crashes.
2. Future Compatibility: This flag is a transitional workaround and may be removed or restricted in future Go versions.

Recommendation: Consider identifying the dependencies (such as Xray/V2Ray core or other Go libraries) that rely on invalid //go:linkname references and update them to compliant versions. If this workaround must be kept for now, please document it with a TODO comment so it can be tracked and removed later.

        "-ldflags=-s -w -buildid= -checklinkname=0", // TODO: Remove once dependencies are updated to comply with Go's linkname restrictions