Use ninja -k option in CI

Some users of the OAI CI complain that since we build with -Werror, it
is difficult to see all warnings/errors and fix them, necessitating
multiple attempts at times to see all warnings. To allow them to see
more warnings, use ninja option -k10 to keep going after errors, and
show more errors at once.

docker/Dockerfile.phySim.rhel9

@@ -38,7 +38,7 @@ RUN dnf install -y libasan libubsan
 RUN /bin/sh oaienv && \ 
     cd cmake_targets && \
     mkdir -p log && \
-    ./build_oai --phy_simulators --ninja --sanitize --noavx512 -c --cmake-opt -DCMAKE_C_FLAGS=-Werror --cmake-opt -DCMAKE_CXX_FLAGS=-Werror
+    ./build_oai --phy_simulators --ninja --build-tool-opt -k10 --sanitize --noavx512 -c --cmake-opt -DCMAKE_C_FLAGS=-Werror --cmake-opt -DCMAKE_CXX_FLAGS=-Werror
 
 #start from scratch for target executable
 FROM registry.access.redhat.com/ubi9/ubi:latest AS oai-physim