Fixed CI scripts on Windows
For an unknown reason, unzip on Windows reports status code 50
(presumably "the disk is (or was) full during extraction.") even
if there's plenty of space. To workaround this, simply ignore
status code 50 on Windows. Sigh.
syntax: glob
*Init.c
makefile
*.so
*.H
*.o
*.STH
*.sc
objbc
objvc
*.class
java/libs/*.jar
java/libs-src/*.jar
*-Test.xml
st.chg
package-cache
mc
# CI Artefacts
ci/package-cache
ci/pharo*
ci/test-data
ci/*.image
ci/*.changes
ci/*.fuel
ci/*.json
ci/*.xml
ci/*.log