LSAT Jenkins build fails when archiving artifacts with killed as last message
## Summary
Almost regularly the LSAT build fails while downloading artifacts. Presumably because of resource limitations.
Example:
```
10:24:29 [INFO] Installing /home/jenkins/agent/workspace/Eclipse_LSAT_build_MR-216/product/org.eclipse.lsat.product/target/products/eclipse-lsat-incubation-dev-win32.win32.x86_64.zip to /home/jenkins/.m2/repository/org/eclipse/lsat/org.eclipse.lsat.product/0.7.0-SNAPSHOT/org.eclipse.lsat.product-0.7.0-SNAPSHOT-win32.win32.x86_64.zip
10:24:33 ./build.sh: line 14: 304 Killed mvn $*
```
## Steps to reproduce
Run one of the builds in https://ci.eclipse.org/lsat in >50% of the cases it will fail with above logging.
## What is the current bug behavior?
Archive zip artifact fails
## What is the expected correct behavior?
Archive zip artifact succeeds.
## Relevant logs and/or screenshots
See for example: https://ci.eclipse.org/lsat/job/Eclipse%20LSAT%20build/view/change-requests/job/MR-216/11/
## Priority
- [ ] Urgent
- [x] High
- [ ] Medium
- [ ] Low
## Severity
- [ ] Blocker
- [x] Major
- [ ] Normal
- [ ] Low
## Impact
It severely costs us a lot of extra effort and a long throughput to get merge requests finished
issue