[mlir] Fix unqualified call to 'std::move' in TransformOps.cpp

/data/llvm-project/mlir/lib/Dialect/Transform/IR/TransformOps.cpp:230:35: error: unqualified call to 'std::move' [-Werror,-Wunqualified-std-cast-call]
  patterns.try_emplace(attr, [f = move(fn)](RewritePatternSet &patternSet) {
                                  ^
                                  std::
1 error generated.