chore(deps): Bump http to 1.4.1 via transitive reqwest 0.12 dependency

[dependabot]

Bumps http from 0.2.12 to 1.4.1.

To use the latest http crate without depending on it directly, reqwest is upgraded from 0.11 to 0.12 (which uses http 1.x internally), so http 1.4.1 is now pulled in transitively.

Changes Made

• reqwest 0.11 → 0.12: brings http 1.x in transitively.
• Removed the direct http production dependency from Cargo.toml.
• Production code now uses reqwest re-exports: reqwest::StatusCode (in github_registry.rs, update/github.rs, errors/reqwest.rs) and reqwest::header::InvalidHeaderValue. The unused InvalidUri HumanErrorExt impl was removed as it was dead code and the last production reference to http.
• Moved http to [dev-dependencies]: still required by the test mock to build a reqwest::Response via http::response::Builder, since reqwest does not expose a response builder.

Testing

• ✅ cargo build succeeds
• ✅ cargo clippy and cargo fmt --check are clean
• ✅ The pure-tests suite passes (198 tests)

[notheotherben]

This PR has been automatically approved because it was created by @dependabot.

[notheotherben]

@copilot can you fix the build to allow us to use the latest version of the http crate? Ideally we shouldn't need to depend directly on this crate and can rely on the transitive dependency instead.

[Copilot]

@copilot can you fix the build to allow us to use the latest version of the http crate? Ideally we shouldn't need to depend directly on this crate and can rely on the transitive depend...

Done in 422a190. I bumped reqwest to 0.12 so that http 1.x is now pulled in transitively, and removed the direct http production dependency. Production code now uses the reqwest re-exports (reqwest::StatusCode, reqwest::header::InvalidHeaderValue) and the unused InvalidUri impl was dropped. http remains only as a dev-dependency for the test mock response builder, since reqwest doesn't re-export a response builder. Build, clippy, fmt and the pure-tests suite all pass.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 88.69%. Comparing base (5d05695) to head (422a190).
⚠️ Report is 5 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1841      +/-   ##
==========================================
+ Coverage   88.61%   88.69%   +0.07%     
==========================================
  Files          99       99              
  Lines        7779     7772       -7     
==========================================
  Hits         6893     6893              
+ Misses        886      879       -7     

Files with missing lines	Coverage Δ
src/errors/reqwest.rs	0.00% <ø> (ø)
src/online/registry/github_registry.rs	87.87% <ø> (ø)
src/update/github.rs	85.85% <100.00%> (ø)

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