add runtestsh to dockerfile

Author: vitaliset

projects/imagemagick/Dockerfile

@@ -36,4 +36,4 @@ RUN git clone --depth 1 --recursive https://github.com/libjxl/libjxl
 RUN git clone https://www.cl.cam.ac.uk/~mgk25/git/jbigkit # does not support shallow
 ADD https://lcamtuf.coredump.cx/afl/demo/afl_testcases.tgz afl_testcases.tgz
 WORKDIR imagemagick
-COPY build.sh $SRC/
+COPY build.sh run_tests.sh $SRC/