fix(xtask): migrate native sources to static.cfx.re

[ihyajb]

Changes

Switch xtask/src/main.rs native generation from deprecated runtime.fivem.net/doc hosting to static.cfx.re/natives for both natives.json and natives_cfx.json. Future generation will consume the updated native names, signatures, documentation, and Enhanced-related APIs from the static datasets. These sources belong to qbx-lua, whose language server is bundled by qbx-editor; this also aligns with the static URLs used by ihyajb/rage-lua-natives/main.ts.

Full dataset comparison (2026-10-02, keyed by namespace and exact hash):

• GTA: 6,416 → 6,436 entries; 21 added, 1 removed, and 183 changed. 42 existing entries gain or change names, e.g. _IS_VEHICLE_MOD_HSW_EXCLUSIVE → IS_VEHICLE_MOD_GEN9_EXCLUSIVE. The removed entry is the old lowercase-hash _GET_CUTSCENE_END_TIME declaration; the static data corrects that hash to SET_CUTSCENE_ORIGIN_AND_ORIENTATION and declares GET_CUTSCENE_END_TIME at 0x971D7B15BCDBEF99.
• Cfx: 943 → 973 entries; 30 added, none removed, and 2 changed. All 30 additions explicitly state GTAV Enhanced-only support, including CREATE_COLSHAPE_POLYGON, UNREGISTER_COMMAND, and RECORDER_START_RECORDING.
• MumbleCreateChannel (MUMBLE_CREATE_CHANNEL, 0x262663C5) already exists identically in both Cfx datasets with apiset: server. It is a Cfx server native, not a new or Enhanced-exclusive native.

This PR changes only the two source URLs; checked-in generated data is left for the existing native update workflow.

Checks

• Passed git diff --check; verified the diff contains only the requested two URL replacements.
• Downloaded and parsed all four public datasets and compared every namespace/hash entry and changed field, including names, parameters, return types, aliases, documentation, and API/game metadata.
• Verified the Enhanced-only descriptions on all 30 Cfx additions and the unchanged server declaration of MumbleCreateChannel.
• Could not run cargo fmt --all --check, cargo clippy --workspace --all-targets --locked -- -D warnings, cargo test --workspace --locked, or cargo xtask natives: this machine has no installed Rust/Cargo toolchain. The existing PR CI runs formatting, Clippy, and workspace tests on Linux and Windows.