chore: replace lazy_static with std LazyLock

[onx2]

Description of Changes

Replaces direct lazy_static usage with standard library primitives.

Most usages were replaced with std::sync::LazyLock. One simple static list of required JWT claims was replaced with a plain static array, and an unused lazy regex in the benchmark summarizer was removed.

This also removes direct lazy_static dependencies from the workspace crates that no longer use it.

Various other deps still use it but the general ecosystem vibe is to use std instead:

• colored v2.2.0 -> chore: remove lazy_static in favor of std colored-rs/colored#231
• prometheus v0.14.0 -> Remove lazy_static dependency tikv/rust-prometheus#556
• sharded-slab v0.1.7 -> (Remove dependency on lazy_static hawkw/sharded-slab#112, Another attempt at removing lazy_static hawkw/sharded-slab#111)
• tracing-flame v0.2.0 -> transitive through sharded-slab which has PRs already.

This is primarily dependency hygiene rather than a performance optimization. Since this codebase targets a modern Rust version, direct lazy_static usage can be replaced with standard library primitives, reducing maintenance burden and one direct dependency.

API and ABI breaking changes

None

Expected complexity level and risk

1 - trivial, matching behavior in std

Testing

Ran:

cargo fmt --all --manifest-path SpacetimeDB/Cargo.toml

cargo check --manifest-path SpacetimeDB/Cargo.toml -p spacetimedb-bench --benches

cargo check --manifest-path SpacetimeDB/Cargo.toml -p spacetimedb-standalone

Also verified there are no remaining direct lazy_static usages in Rust source files.

[onx2]

This seemed like it should have been const, can change to static though if I'm missing something.