fix(ios): Possible fix for the NVM node version not carrying over between steps (#51)

Author: matt-oakes

src/commands/setup_macos_executor.yml

@@ -28,6 +28,8 @@ steps:
       command: |
         set +e
         curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.35.3/install.sh | bash
+        echo 'export NVM_DIR=$HOME/.nvm' >> $BASH_ENV
+        echo 'source $NVM_DIR/nvm.sh' >> $BASH_ENV
         source ~/.bashrc
         command -v nvm
         nvm install <<parameters.node_version>>