test: Make the Rust suite pass on Windows

Use the Windows wrapper name for Maven, compare walked paths with `/`,
relax the own-process footprint floor, skip tests that assert Unix paths
or shells on Windows, and stop Git converting fixture line endings in CI.

Claude-Session: https://claude.ai/code/session_01B65qLEKnkeYTGdbwhLpjCu

.github/workflows/ci.yml

@@ -42,6 +42,8 @@ jobs:
       - if: runner.os == 'Linux'
         run: cargo fmt --all --check
       - run: cargo clippy --workspace --all-targets -- -D warnings
+      # Test fixtures write LF files; keep Git from converting them on checkout.
+      - run: git config --global core.autocrlf false
       - run: cargo nextest run --workspace --no-fail-fast
       - name: Bindings are up to date
         if: runner.os == 'Linux'