[libcxx] Update picolibc version used in CI to 1.8.10#165269

vhscampos wants to merge 1 commit intollvm:mainllvm/llvm-project:mainfrom

vhscampos:update-picolibc-v1.8.10vhscampos/llvm-project:update-picolibc-v1.8.10Copy head branch name to clipboard