Bump Cairo to v2.12.0-dev.0 (starkware-libs#2040)

* Bump Cairo to v2.12.0-dev.0

* Updte CHANGELOG.md

* Update lock

* Use as_str instead of as_ref

Compiler cannot infer type with as_ref

* Update entrypoint offset

Changes in the compiler must have changed casm generation

Author: JulianGCalderon

CHANGELOG.md

@@ -2,6 +2,8 @@
 
 #### Upcoming Changes
 
+* chore: update cairo-lang dependencies to 2.12.0-dev.0 #[2040](https://github.com/lambdaclass/cairo-vm/pull/2040)
+
 * feat: add get_current_step getter [#2034](https://github.com/lambdaclass/cairo-vm/pull/2034)
 
 * feat: implement VirtualMachine::is_accessed [#2033](https://github.com/lambdaclass/cairo-vm/pull/2033)