[Apple][NFC] Update macOS aligned version for lit config

This updates the aligned version for version 26.

rdar://152851947

Author: thetruestblue

compiler-rt/test/lit.common.cfg.py

@@ -602,7 +602,7 @@ def get_ios_commands_dir():
 
     def get_macos_aligned_version(macos_vers):
         platform = config.apple_platform
-        if platform == "osx":
+        if platform == "osx" or macos_vers >= 26:
             return macos_vers
 
         macos_major, macos_minor = macos_vers