[llvm] [workflow] escape issue/pr body only if it exists (PR #71251)

[Julian Schmidt via llvm-commits]

5chmidti wrote:

The problem was found in this run: https://github.com/llvm/llvm-project/actions/runs/6750874120/job/18354013803 for #71245

https://github.com/llvm/llvm-project/pull/71251