Migrated extensions to signals (#1973)

<!-- Reference any GitHub issues resolved by this PR -->

Closes #1610 

## Introduced changes

<!-- A brief description of the changes -->

- Migrated extensions to hooks

## Checklist

<!-- Make sure all of these are complete -->

- [x] Linked relevant issue
- [x] Updated relevant documentation
- [x] Added relevant tests
- [x] Performed self-review of the code
- [x] Added changes to `CHANGELOG.md`

crates/cheatnet/src/runtime_extensions/cheatable_starknet_runtime_extension.rs

@@ -84,9 +84,10 @@ impl<'a> ExtensionLogic for CheatableStarknetRuntimeExtension<'a> {
  }
  }
 
- fn post_syscall_hook(
+ fn handle_system_call_signal(
  &mut self,
- selector: &DeprecatedSyscallSelector,
+ selector: DeprecatedSyscallSelector,
+ _vm: &mut VirtualMachine,
  extended_runtime: &mut Self::Runtime,
  ) {
  let syscall_handler = &extended_runtime.hint_handler;

crates/runtime/src/lib.rs

@@ -302,10 +302,8 @@ impl<Extension: ExtensionLogic> ExtendedRuntime<Extension> {
  } else {
  self.extended_runtime
  .execute_hint(vm, exec_scopes, hint_data, constants)?;
-
  self.extension
- .post_syscall_hook(&selector, &mut self.extended_runtime);
-
+ .handle_system_call_signal(selector, vm, &mut self.extended_runtime);
  Ok(())
  }
  }
@@ -395,14 +393,6 @@ pub trait ExtensionLogic {
  Ok(SyscallHandlingResult::Forwarded)
  }
 
- #[allow(clippy::trivially_copy_pass_by_ref)]
- fn post_syscall_hook(
- &mut self,
- _selector: &DeprecatedSyscallSelector,
- _extended_runtime: &mut Self::Runtime,
- ) {
- }
-
  #[allow(clippy::trivially_copy_pass_by_ref)]
  fn handle_cheatcode(
  &mut self,