[mlir] properly fix concurrent transform interpreter pass base

The original implementation of the transform interpreter pass base was
cloning the entire transform IR in presence of PDL-related operations to
avoid concurrency issues when running the pass with the same transform
IR on multiple operations of the payload IR. The root cause of those
issues is the `transform.pdl_match` operation that was moving the PDL
pattern definition operation into a new module, consumed by the PDL
interpreter and leading to a race. Clone the pattern operation instead.
This avoids the race as well as the cost for transform IR that doesn't
use PDL.

Depends on D142729.

Reviewed By: nicolasvasilache

Differential Revision: https://reviews.llvm.org/D142962