Update RELEASE.md

Co-authored-by: Alexis Métaireau <[email protected]>

RELEASE.md

@@ -15,7 +15,7 @@ Here is a list of tasks that should be done before issuing the release:
 - [ ] Update the "Version" field in `install/linux/dangerzone.spec`
 - [ ] Bump the Debian version by adding a new changelog entry in `debian/changelog`
 - [ ] [Bump the minimum Docker Desktop versions](https://github.com/freedomofpress/dangerzone/blob/main/RELEASE.md#bump-the-minimum-docker-desktop-version) in `isolation_provider/container.py`
-- [ ] Bump the dates in the `Dockerfile`
+- [ ] Bump the dates and versions in the `Dockerfile`
 - [ ] Update screenshot in `README.md`, if necessary
 - [ ] CHANGELOG.md should be updated to include a list of all major changes since the last release
 - [ ] A draft release should be created. Copy the release notes text from the template at [`docs/templates/release-notes`](https://github.com/freedomofpress/dangerzone/tree/main/docs/templates/)