chore(deps): bump the rust-minor group across 1 directory with 2 updates

[dependabot]

Bumps the rust-minor group with 2 updates in the / directory: serde_json and mimalloc.

Updates serde_json from 1.0.149 to 1.0.150

Release notes

Sourced from serde_json's releases.

v1.0.150

• Reject non-string enum object keys (#1324, thanks @​puneetdixit200)

Commits

• a1ae73a Release 1.0.150
• 1a360b0 Merge pull request #1324 from puneetdixit200/reject-non-string-enum-keys
• 2037b63 Reject non-string enum object keys
• 5d30df6 Resolve manual_assert_eq pedantic clippy lint
• dc8003a Raise required compiler for preserve_order feature to 1.85
• a42fa98 Unpin CI miri toolchain
• 684a60e Pin CI miri to nightly-2026-02-11
• 7c7da33 Raise required compiler to Rust 1.71
• acf4850 Simplify Number::is_f64
• 6b8ceab Resolve unnecessary_map_or clippy lint
• Additional commits viewable in compare view

Updates mimalloc from 0.1.48 to 0.1.52

Release notes

Sourced from mimalloc's releases.

Version 0.1.52

Changes

• Expose mi_stats_get_json().
• Fix ARM compilation.

Version 0.1.51

Changes

• Mimalloc bumped to v3.3.2 and v2.3.2.
• Compile with msvc on windows.

Version 0.1.50

Changes

• Update to mimalloc v2.3.1 and v3.3.1

Version 0.1.49

Changes

• Update to mimalloc v2.3.0 and v3.3.0
• Use mimalloc v3 by default.

Commits

• abcd2be v0.1.52
• 9db5330 Remove explicit arm instruction set
• d06bd31 Merge pull request #161 from svix-jbrown/feat/stats-json
• eb4a16d simplify API
• e1fd9eb fix up some tests
• 6805298 v0.1.51
• ba2c9b1 Fix extended v3
• 84969eb Merge pull request #160 from Havunen/feat/adjust_build_to_match_mimalloc
• 843b9b2 Updated mimalloc to 3.3.2 and 2.3.2
• da7a09c feat: expose mi_stats_get_json and a safe wrapper around it
• Additional commits viewable in compare view

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