lower job limit for less ram usage

dockerfile

@@ -81,7 +81,7 @@ WORKDIR /build/therock
 COPY . .
 ENV CFLAGS="-O2 -Wno-error -DSIMDE_ENABLE_NATIVE_ALIASES"
 ENV CXXFLAGS="-O2 -Wno-error -fpermissive -DSIMDE_ENABLE_NATIVE_ALIASES"
-ENV MAX_JOBS=16
+ENV MAX_JOBS=10
 ENV MAX_LINK=1
 
 # ROC Profiler is not supported on GFX1100