.gitlab-ci.yml: Use another folder name for virtualenv

The name may be quite long which could cause some issues because of a too long
path.

Fix #4220
Status Job ID Name Coverage
  Test Tools
passed #593952
test_tools

00:00:08

 
  Test Quality
passed #593953
web
code_quality

00:00:09

 
  Test Unit
passed #593954
web
test_browser_unit

00:00:48

passed #593955
web
test_server_unit

00:00:18

 
  Deploy Review
passed #593956
web
deploy_review

00:00:17

manual #593957
web allowed to fail manual
stop_deploy_review
 
  Test Functional
passed #593960
web
chrome-browser-functional

00:03:30

passed #593958
web
ff32-browser-functional

00:02:55

failed #594610
x86_64 docker
ff32-server-functional

00:15:17

passed #593959
web
ff45-browser-functional

00:03:35

failed #593963
docker x86_64
ff45-server-functional

00:14:14

passed #593961
legacy
old-chrome-browser-functional

00:03:09

failed #593962
docker x86_64
ff32-server-functional

00:16:51

 
  Test Functional External
skipped #593966
web
chrome-browser-functional-external
skipped #593964
web
ff32-browser-functional-external
skipped #593965
web
ff45-browser-functional-external
skipped #593967
legacy
old-chrome-browser-functional-external-chrome
 
Name Stage Failure
failed
ff32-server-functional Test Functional
Deleted: sha256:f9a026bda50faf649b9867c97be28b38ffa8f693ad0f7267a08f25f593af8c35
Deleted: sha256:10336b1c417357efca813d16792a72092b8ef58d762d08704e6934e0ef83e81d
Deleted: sha256:165c235cb75fd4038498f829bd3f2980e3c3a55125ff4143f76669332c2a87f9
Deleted: sha256:551da5b777322948bb6c0f133e263fde0af4cbf196e5dd885a6669d038f312a6
Uploading artifacts...
Runtime platform arch=amd64 os=linux pid=15628 revision=58272c27 version=12.7.0
server/web2py/applications/vidjil/tests/test/TEST-*.xml: found 5 matching files

Uploading artifacts to coordinator... ok
id=594610 responseStatus=201 Created token=T3xZtnxt
ERROR: Job failed: exit status 1
failed
ff45-server-functional Test Functional
Deleted: sha256:05e083d7ca161d045bf1099413e7b8874c14f5846423f0e7d8b2c8a3be3bcb1a
Deleted: sha256:203a83a340e12f01f49a8468aefeefb17a6ad8a5efa048a03978f30b7bf6a1f6
Deleted: sha256:d8e276ae749911a1092cd08c4240dc7bf3423a047ecf91e9e3e5930b5188da06
Deleted: sha256:5c60cc7833622054c924475bbf6ee4e7d10aa7fdbc1b3b0411c8871dcf08e9fb
Uploading artifacts...
Runtime platform arch=amd64 os=linux pid=4296 revision=58272c27 version=12.7.0
server/web2py/applications/vidjil/tests/test/TEST-*.xml: found 5 matching files

Uploading artifacts to coordinator... ok
id=593963 responseStatus=201 Created token=33zxTM_d
ERROR: Job failed: exit status 1