message: Tweak test instructions for macOS again
diff: @@ -200,7 +200,7 @@ If you want to build from source code, you need to install this before:
  ```
  export SODIUM_USE_PKG_CONFIG=1
  - export DYLD_LIBRARY_PATH=./tezos/sys/lib_tezos/artifacts # currently needed for macOS
  + export DYLD_LIBRARY_PATH=$(pwd)/tezos/sys/lib_tezos/artifacts # currently needed for macOS
  cargo test --release
  ```
  