style(clippy): use ? operator instead of match in find_git_root

[github-actions]

What clippy found

clippy::question_mark in src/compile/common.rs:1733:

error: this `match` expression can be replaced with `?`
  --> src/compile/common.rs:1733:9
1733 | /         match current.parent() {
1734 | |             Some(parent) => current = parent.to_path_buf(),
1735 | |             None => return None,
1736 | |         }

How it was fixed

Replaced the match current.parent() { Some(p) => ..., None => return None } pattern with let parent = current.parent()?; in the find_git_root helper. One file touched: src/compile/common.rs.

Verification

• cargo build --all-targets ✅
• cargo test ✅
• cargo clippy --all-targets --all-features --workspace -- -D warnings ✅ (exit 0, no warnings)

Warning

Firewall blocked 1 domain

The following domain was blocked by the firewall during workflow execution:

• spsprodeus21.vssps.visualstudio.com

To allow these domains, add them to the network.allowed list in your workflow frontmatter:

network:
  allowed:
    - defaults
    - "spsprodeus21.vssps.visualstudio.com"

See Network Configuration for more information.

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