Track synchronized tink-rust main branch

[Legoben]

Description

Update tink-core, tink-proto, and tink-hybrid to track the synchronized main branch of warpdotdev/tink-rust.

warpdotdev/tink-rust#7 has merged. It syncs the latest upstream project-oak/tink-rust changes into main while preserving our HPKE proto code-generation patch.

Cargo.lock now records the merged tink-rust main commit: 75e88a992698ddd2ec23f9a4e85b43f9745e5796.

The merged tink-core manifest requires serde_json ^1.0.147, so the lockfile also refreshes serde_json from 1.0.145 to the lowest compatible version, 1.0.147, and adds its zmij 0.1.11 transitive dependency.

Linked Issue

N/A — upstream dependency sync.

• The linked issue is labeled ready-to-spec or ready-to-implement.
• Where appropriate, screenshots or a short video of the implementation are included below (especially for user-visible or UI changes).

Testing

• cargo metadata --manifest-path Cargo.toml --locked --format-version 1
• git diff --check
• cargo check --manifest-path Cargo.toml --locked -p warp_managed_secrets — blocked in the sandbox because its rustc 1.85.0 is older than existing workspace dependencies requiring rustc 1.86+.
• I have manually tested my changes locally with ./script/run

Agent Mode

• Warp Agent Mode - This PR was created via Warp's AI Agent Mode

CHANGELOG-NONE

Co-Authored-By: Oz oz-agent@warp.dev

Conversation: https://staging.warp.dev/conversation/59e1d76c-330c-459a-a41d-ff7470665b3d
Run: https://oz.staging.warp.dev/runs/019e9123-37ea-7163-9346-4c4eb2083801
This PR was generated with Oz.

[oz-for-oss]

@Legoben

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[oz-for-oss]

Overview

This PR retargets the tink-core, tink-proto, and tink-hybrid git dependencies from warpdotdev/main to main and updates the corresponding lockfile sources.

Concerns

• Cargo.lock still pins the main branch dependencies to the placeholder pre-merge commit called out in the PR description, so locked builds would not consume the synchronized tink-rust main branch after merge.

Verdict

Found: 0 critical, 1 important, 0 suggestions

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[oz-for-oss]

⚠️ [IMPORTANT] Cargo.lock still pins tink-core to the placeholder pre-merge SHA, so --locked builds will not use the synchronized main commit this PR is meant to track. Refresh the lockfile after the upstream tink-rust merge before merging this PR.