Upgrade event listener used to v1.2.0 in docker compose

[alfredeen]

Description

This PR upgrades the version of the event listener used in the developer's docker compose setup.

Checklist

• This pull request is against develop branch (not applicable for hotfixes)
• I have included a link to the issue on GitHub or JIRA (if any)
• I have included migration files (if there are changes to the model classes)
• I have included, reviewed and executed tests (unit and end2end) to complement my changes
• I have updated the related documentation (if necessary)
• I have added a reviewer for this pull request
• I have added myself as an author for this pull request
• In the case I have modified settings.py, then I have also updated the studio-settings-configmap.yaml file in serve-charts

Further comments

There will likely be a version 1.2.1 or 1.3 before the next release, so this is mainly just for developers' convenience.