Change the LLVM tools version to 13
LLVM 13.0.0 was released on 4. October 2021, change the default version to the current stable.
(cherry picked from commit 16916ab3)
Closes #2933 (closed)
LLVM 13.0.0 was released on 4. October 2021, change the default version to the current stable.
(cherry picked from commit 16916ab3)
Closes #2933 (closed)