fix(deps): update github.com/shortlink-org/go-sdk/flight_trace digest to 4c6548e

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
github.com/shortlink-org/go-sdk/flight_trace (changelog)	require	digest	8c030da -> 4c6548e

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[renovate]

⚠️ Artifact update problem

Renovate failed to update artifacts related to this branch. You probably do not want to merge this PR as-is.

♻ Renovate will retry this branch, including artifacts, only when one of the following happens:

• any of the package files in this branch needs updating, or
• the branch becomes conflicted, or
• you click the rebase/retry checkbox if found above, or
• you rename this PR's title to start with "rebase!" to trigger it manually

The artifact failure details are included below:

File name: grpc/go.sum

Command failed: install-tool golang 1.25.3

File name: http/go.sum

Command failed: install-tool golang 1.25.3