[3.13] GH-120602: Support LLVM_VERSION_SUFFIX for JIT builds (GH-120768)

(cherry picked from commit 285f42c)

Co-authored-by: Xarblu <[email protected]>

Author: miss-islington

Misc/NEWS.d/next/Build/2024-06-19-21-05-15.gh-issue-120602.UyDARz.rst

@@ -0,0 +1,2 @@
+Correctly handle LLVM installs with ``LLVM_VERSION_SUFFIX`` when building
+with ``--enable-experimental-jit``.

Tools/jit/_llvm.py

@@ -9,7 +9,7 @@
 import typing
 
 _LLVM_VERSION = 18
-_LLVM_VERSION_PATTERN = re.compile(rf"version\s+{_LLVM_VERSION}\.\d+\.\d+\s+")
+_LLVM_VERSION_PATTERN = re.compile(rf"version\s+{_LLVM_VERSION}\.\d+\.\d+\S*\s+")
 
 _P = typing.ParamSpec("_P")
 _R = typing.TypeVar("_R")