Move compiler-core -> crates/compiler-core (#6258)

Cargo.toml

@@ -122,7 +122,6 @@ template = "installer-config/installer.wxs"
 resolver = "2"
 members = [
     "compiler",
-    "compiler/core",
     "compiler/codegen",
     "compiler/literal",
     ".",
@@ -145,7 +144,7 @@ repository = "https://github.com/RustPython/RustPython"
 license = "MIT"
 
 [workspace.dependencies]
-rustpython-compiler-core = { path = "compiler/core", version = "0.4.0" }
+rustpython-compiler-core = { path = "crates/compiler-core", version = "0.4.0" }
 rustpython-compiler = { path = "compiler", version = "0.4.0" }
 rustpython-codegen = { path = "compiler/codegen", version = "0.4.0" }
 rustpython-common = { path = "crates/common", version = "0.4.0" }