This PR addresses a [comment] made by @ftynse about the syntax for `ForeachOp`. The syntax was modified by @muneebkhan85 in #82792, where the attribute dictionary was moved to the middle. This patch moves it back to its original place at the end. And introduces an optional keyword for `zip_shortest`. [comment]: https://github.com/llvm/llvm-project/pull/82792#pullrequestreview-2132814144