fix(docker): fixed deb tester sub image.

[FedeDP]

What type of PR is this?

Uncomment one (or more) /kind <> lines:

/kind bug

/kind cleanup

/kind design

/kind documentation

/kind failing-test

/kind feature

If contributing rules or changes to rules, please make sure to also uncomment one of the following line:

/kind rule-update

/kind rule-create

Any specific area of the project related to this PR?

Uncomment one (or more) /area <> lines:

/area build

/area engine

/area rules

/area tests

/area proposals

What this PR does / why we need it:

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

NONE

[FedeDP]

/cc @leogr @jasondellaluce

This won't pass integration tests because they're currently broken :/

EDIT: of course, i broke the image...

[leogr]

/milestone 0.32.1

[poiana]

LGTM label has been added.

Git tree hash: 1756fd6e0522aed5b1a51e94248475010e9106f9

[jasondellaluce]

/approve

[poiana]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: FedeDP, jasondellaluce

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• docker/OWNERS [FedeDP,jasondellaluce]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment