release process: quick test for JPEG XL debug mode (very slow)

PiperOrigin-RevId: 375047518
diff --git a/g3doc/release_testing_process.md b/g3doc/release_testing_process.md
index 12d0603..24f1a21 100644
--- a/g3doc/release_testing_process.md
+++ b/g3doc/release_testing_process.md
@@ -46,7 +46,7 @@
 
 ```
 for VER in 7 8 9 10 11; do
-  rm -rf build_debug$VER && CC=clang-$VER CXX=clang++-$VER BUILD_DIR=build_debug$VER ./ci.sh debug && rm -rf build_debug$VER
+  rm -rf build_debug$VER && CC=clang-$VER CXX=clang++-$VER BUILD_DIR=build_debug$VER SKIP_TEST=1 ./ci.sh debug && ./ci.sh test -R PassesTest && rm -rf build_debug$VER
   rm -rf build_asan$VER  && CC=clang-$VER CXX=clang++-$VER BUILD_DIR=build_asan$VER  ./ci.sh asan  && rm -rf build_asan$VER
   rm -rf build_msan$VER  && CC=clang-$VER CXX=clang++-$VER BUILD_DIR=build_msan$VER  ./ci.sh msan  && rm -rf build_msan$VER
 done