[llvm] workflows/release-tasks: Setup FileCheck and not for release-lit (PR #66799)

[Joel E. Denny via llvm-commits]

jdenny-ornl wrote:

> @jdenny-ornl @tstellar What do you think about this? How closely tied is lit with the current in-tree version of FileCheck? I would like to fix this before the next release so that we can run the lit tests in the CI.

FileCheck doesn't grow new features frequently.  However, when it does, tests can use those features immediately.  I think it would be worthwhile to build the latest FileCheck.  @RoboTux @jh7370 might wish to comment as well.

https://github.com/llvm/llvm-project/pull/66799