fix: library.json version isn't maintained

Author: w531t4

setup.cfg

@@ -6,6 +6,9 @@ tag_format = "v{version}"
 version_toml = []
 changelog_file = "CHANGELOG.md"
 commit_message = "chore(release): {version} [skip ci]"
+version_variables = [
+  "library.json:version"
+]
 
 [tool.semantic_release.commit_parser_options]
 allowed_tags = ["feat", "feature", "fix", "perf", "chore", "docs", "style", "refactor", "test", "build", "ci", "revert"]