Renamed `_build_script_run` rule to `cargo_build_script` (#1612)

* Renamed `_build_script_run` rule to `cargo_build_script`

* Regenerate documentation
diff --git a/cargo/defs.bzl b/cargo/defs.bzl
index 0ca086b..2801805 100644
--- a/cargo/defs.bzl
+++ b/cargo/defs.bzl
@@ -1,9 +1,21 @@
 """Common definitions for the `@rules_rust//cargo` package"""
 
-load(":cargo_bootstrap.bzl", _cargo_bootstrap_repository = "cargo_bootstrap_repository", _cargo_env = "cargo_env")
-load(":cargo_build_script.bzl", _cargo_build_script = "cargo_build_script")
+load(
+    "//cargo/private:cargo_build_script.bzl",
+    _cargo_dep_env = "cargo_dep_env",
+)
+load(
+    "//cargo/private:cargo_build_script_wrapper.bzl",
+    _cargo_build_script = "cargo_build_script",
+)
+load(
+    ":cargo_bootstrap.bzl",
+    _cargo_bootstrap_repository = "cargo_bootstrap_repository",
+    _cargo_env = "cargo_env",
+)
 
 cargo_bootstrap_repository = _cargo_bootstrap_repository
 cargo_env = _cargo_env
 
 cargo_build_script = _cargo_build_script
+cargo_dep_env = _cargo_dep_env