Use --relocate-xdg-cache-home-under-build-subdir for Linux incremental presets

Author: edymtt

utils/build-presets.ini

@@ -1038,6 +1038,13 @@ lit-args=-v
 build-ninja
 reconfigure
 
+# This ensures the default module cache
+# location is local to this run, allowing
+# to schedule multiple builds safely
+# in Linux CI bots
+relocate-xdg-cache-home-under-build-subdir
+
+
 [preset: buildbot_incremental_linux]
 mixin-preset=
     buildbot_incremental_linux_base