Use the latest Debian version in Dockerfile

docker/Dockerfile

@@ -8,13 +8,14 @@ RUN apt-get update && \
     libzip-dev libboost1.74-all-dev lua5.4 liblua5.4-dev pkg-config -o APT::Install-Suggests=0 -o APT::Install-Recommends=0
 
 RUN NPROC=${BUILD_CONCURRENCY:-$(nproc)} && \
+    export CXXFLAGS="-Wno-stringop-overflow" && \
     ldconfig /usr/local/lib && \
     git clone --branch v2021.3.0 --single-branch https://github.com/oneapi-src/oneTBB.git && \
     cd oneTBB && \
     mkdir build && \
     cd build && \
     cmake -DTBB_TEST=OFF -DCMAKE_BUILD_TYPE=Release ..  && \
-    cmake --build . && \
+    cmake -j${NPROC} --build . && \
     cmake --install .
 
 COPY . /src