* Fix C headers (the name of the syscall was incorrect).
* Add C SBF tests using the alt_bn128 syscall.
* Fix the Rust SBF program:
* Do not use serde and array-bytes, provide test cases as byte arrays
directly.
* Use the `custom_heap_default` macro.
* Replace `bpf` with `sbf` in the crate name.
* Execute both previously existing Rust tests and new C tests in
`programs/sbf/tests`, so they are actually tested on CI.
* introduce workspace.package
* introduce workspace.dependencies
* read version from root cargo.toml
* pass check when version = { workspace = true }
* don't bump version when version = { workspace = true }
* including workspace Cargo.toml when bump version
* programs/sbf use workspace inheritance
* fix increasing cargo version ignore program/sbf/Cargo.toml
* introduce workspace.package
* introduce workspace.dependencies
* read version from root cargo.toml
* pass check when version = { workspace = true }
* don't bump version when version = { workspace = true }
* including workspace Cargo.toml when bump version
* programs/sbf use workspace inheritance
* fix increasing cargo version ignore program/sbf/Cargo.toml