Use fixed version of cairo deps

Author: cptartur

Cargo.toml

@@ -36,18 +36,18 @@ license-file = "LICENSE"
 blockifier = { version = "0.15.0-rc.3", features = ["testing", "tracing"] }
 bigdecimal = "0.4.8"
 starknet_api = "0.15.0-rc.3"
-cairo-lang-casm = { version = "2.12.0", features = ["serde"] }
-cairo-lang-sierra = "2.12.0"
-cairo-lang-utils = "2.12.0"
-cairo-lang-starknet = "2.12.0"
-cairo-lang-filesystem = "2.12.0"
-cairo-lang-diagnostics = "2.12.0"
-cairo-lang-sierra-type-size = "2.12.0"
-cairo-lang-syntax = "2.12.0"
-cairo-lang-test-plugin = "2.12.0"
-cairo-lang-starknet-classes = "2.12.0"
-cairo-lang-parser = "2.12.0"
-cairo-lang-sierra-to-casm = "2.12.0"
+cairo-lang-casm = { version = "=2.12.0", features = ["serde"] }
+cairo-lang-sierra = "=2.12.0"
+cairo-lang-utils = "=2.12.0"
+cairo-lang-starknet = "=2.12.0"
+cairo-lang-filesystem = "=2.12.0"
+cairo-lang-diagnostics = "=2.12.0"
+cairo-lang-sierra-type-size = "=2.12.0"
+cairo-lang-syntax = "=2.12.0"
+cairo-lang-test-plugin = "=2.12.0"
+cairo-lang-starknet-classes = "=2.12.0"
+cairo-lang-parser = "=2.12.0"
+cairo-lang-sierra-to-casm = "=2.12.0"
 cairo-vm = "=2.3.1"
 cairo-annotations = "0.5.2"
 dirs = "6.0.0"