stack/erp5: version up waitress 1.4.4

With multiple security fixes
3 jobs for fix/tesseract-slaprunner in 0 seconds
Status Job ID Name Coverage
  External
failed SlapOS.SoftwareReleases.IntegrationTest-Master.Python2

passed SlapOS.SoftwareReleases.IntegrationTest-Master.Python3

failed Wendelin.StandaloneDeploymentScriptTest-Debian.Buster.Master

15:03:44