Test case: Workspace with version.workspace = true inheritance.

This test verifies that the analyzer correctly handles Cargo workspaces where
member packages inherit version from [workspace.package].

Structure:
- Root Cargo.toml: defines [workspace.package] with version = "2.0.0"
- app/Cargo.toml: member package using version.workspace = true

Expected behavior:
- Virtual workspace root should have RelationshipRoot with no name/version
- myapp should have RelationshipWorkspace with version "2.0.0" (inherited)
- serde should have RelationshipDirect

-- Cargo.lock --
# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
version = 3

[[package]]
name = "myapp"
version = "2.0.0"
dependencies = [
 "serde",
]

[[package]]
name = "serde"
version = "1.0.195"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "63261df402c67811e9ac6def069e4786148c4563f4b50fd4bf30aa370d626b02"
-- Cargo.toml --
[workspace.package]
version = "2.0.0"

[workspace]
members = ["app"]
-- app/Cargo.toml --
[package]
name = "myapp"
version.workspace = true
edition = "2021"

[dependencies]
serde = "1.0"