[R]: Fix reticulate error in R cookbook test (#382)
Fixes https://github.com/apache/arrow-cookbook/issues/381. See for more
context.
I didn't think you had to do this but the docs suggest maybe you do. Without this, we were getting,
── Failed tests ────────────────────────────────────────────────────────────────
Error ('test-python.R:39:1'): (code run outside of `test_that()`)
<python.builtin.ModuleNotFoundError/python.builtin.ImportError/python.builtin.Exception/python.builtin.BaseException/python.builtin.object/error/condition>
Error in `py_module_import(module, convert = convert)`: ModuleNotFoundError: No module named 'pyarrow'
Run `reticulate::py_last_error()` for details.
Backtrace:
▆
1. └─reticulate::import("pyarrow") at test-python.R:39:1
2. └─reticulate:::py_module_import(module, convert = convert)
[ FAIL 1 | WARN 2 | SKIP 0 | PASS 85 ]1 file changed
