[CI] Hotfix: CI runs failing due to target escaping (#86897)

My patch #86877 contains a mistake.
Should have read the comment.
Recent buildkite runs fail because of this, so it is a bit urgent.

Author: marcauberer

.ci/monolithic-linux.sh

@@ -54,4 +54,4 @@ cmake -S "${MONOREPO_ROOT}"/llvm -B "${BUILD_DIR}" \
 
 echo "--- ninja"
 # Targets are not escaped as they are passed as separate arguments.
-ninja -C "${BUILD_DIR}" -k 0 "${targets}"
+ninja -C "${BUILD_DIR}" -k 0 ${targets}

.ci/monolithic-windows.sh

@@ -62,4 +62,4 @@ cmake -S "${MONOREPO_ROOT}"/llvm -B "${BUILD_DIR}" \
 
 echo "--- ninja"
 # Targets are not escaped as they are passed as separate arguments.
-ninja -C "${BUILD_DIR}" -k 0 "${targets}"
+ninja -C "${BUILD_DIR}" -k 0 ${targets}