FreeBSD CI: match the shared template (git + safe.directory, 4 vCPUs, pinned vmactions/freebsd-vm)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

.github/workflows/freebsd.yml

@@ -41,6 +41,8 @@ jobs:
             curl -fsSL https://sh.rustup.rs | sh -s -- -y --profile minimal
           run: |
             . "$HOME/.cargo/env"
+            # The checkout is synced in under another owner; let tests that call git read it.
+            git config --global --add safe.directory "*"
             rustc --version
             CARGO_PROFILE_DEV_DEBUG=0 cargo build --workspace --all-targets --locked
             CARGO_PROFILE_DEV_DEBUG=0 cargo test --workspace --locked