ci: update static_analysis dockerfile

tools/ci/images/static_analysis/Dockerfile

@@ -27,6 +27,7 @@ RUN clang --version  \
     && g++ --version \
     && clang --version \
     && clang-tidy --version \
+    && which ninja \
     && ninja --version \
     && mold --version
 

tools/scripts/build_ci_images.sh

@@ -4,15 +4,19 @@ set -e
 
 IMAGE_DIR="$(git rev-parse --show-toplevel)/tools/ci/images"
 
+echo "==> Building image: clang format"
 cd "$IMAGE_DIR/clang_format"
 docker build -t clang_format .
 
+echo "==> Building image: static analysis"
 cd "$IMAGE_DIR/static_analysis"
 docker build -t static_analysis .
 
+echo "==> Building image: unit tests"
 cd "$IMAGE_DIR/unit_tests"
 docker build -t unit_tests .
 
+echo "==> Building image: valgrind"
 cd "$IMAGE_DIR/valgrind"
 docker build -t valgrind .