fix(release): restore bookworm build environment

.github/workflows/release.yml

@@ -94,7 +94,7 @@ jobs:
             runner: ubuntu-24.04-arm
             target: aarch64-unknown-linux-gnu
             artifact: release-linux-aarch64
-    container: rust:1.96.1-bullseye
+    container: rust:1.96.1-bookworm
     steps:
       - name: Checkout repository
         uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2

scripts/release.py

@@ -4,7 +4,6 @@
 from __future__ import annotations
 
 import argparse
-import json
 import os
 import re
 import shlex
@@ -13,6 +12,7 @@ import subprocess
 import sys
 import tarfile
 import tempfile
+import tomllib
 import zipfile
 from pathlib import Path
 from typing import Sequence
@@ -72,41 +72,15 @@ def normalize_version(raw_version: str) -> str:
 
 
 def manifest_version() -> str:
-    output = run_checked(
-        [
-            "cargo",
-            "metadata",
-            "--format-version",
-            "1",
-            "--no-deps",
-            "--manifest-path",
-            str(MANIFEST_PATH),
-        ],
-        capture_output=True,
-    ).stdout
+    with MANIFEST_PATH.open("rb") as manifest_file:
+        manifest = tomllib.load(manifest_file)
     try:
-        metadata = json.loads(output)
-    except json.JSONDecodeError as error:
-        raise ReleaseError("cargo metadata returned an invalid package list") from error
-    packages = metadata.get("packages") if isinstance(metadata, dict) else None
-    if not isinstance(packages, list):
-        raise ReleaseError("cargo metadata returned an invalid package list")
-
-    for package in packages:
-        if not isinstance(package, dict):
-            continue
-        if package.get("name") != "moli":
-            continue
-        manifest_path = package.get("manifest_path")
-        version = package.get("version")
-        if (
-            isinstance(manifest_path, str)
-            and Path(manifest_path).resolve() == MANIFEST_PATH
-            and isinstance(version, str)
-        ):
-            return version
-
-    raise ReleaseError(f"package.version is missing from {MANIFEST_PATH}")
+        value = manifest["package"]["version"]
+    except (KeyError, TypeError) as error:
+        raise ReleaseError(f"package.version is missing from {MANIFEST_PATH}") from error
+    if not isinstance(value, str):
+        raise ReleaseError(f"package.version in {MANIFEST_PATH} is not a string")
+    return value
 
 
 def rust_host_target() -> str: