[flake8_print] better suggestion for basicConfig in T201 docs (#22101)

`logging.basicConfig` should not be called at a global module scope,
as that produces a race condition to configure logging based on which
module gets imported first.  Logging should instead be initialized
in an entrypoint to the program, either in a `main()` or in the
typical `if __name__ == "__main__"` block.

crates/ruff_linter/src/rules/flake8_print/rules/print_call.rs

@@ -36,13 +36,16 @@ use crate::{Fix, FixAvailability, Violation};
 /// ```python
 /// import logging
 ///
-/// logging.basicConfig(level=logging.INFO)
 /// logger = logging.getLogger(__name__)
 ///
 ///
 /// def sum_less_than_four(a, b):
 ///     logger.debug("Calling sum_less_than_four")
 ///     return a + b < 4
+///
+///
+/// if __name__ == "__main__":
+///     logging.basicConfig(level=logging.INFO)
 /// ```
 ///
 /// ## Fix safety