[metrics-bugs] #22652 [Metrics/CollecTor]: Adapt CollecTor to metrics-lib 1.9.0

[Tor Bug Tracker & Wiki]

#22652: Adapt CollecTor to metrics-lib 1.9.0
-------------------------------+---------------------------------
 Reporter:  iwakeh             |          Owner:  metrics-team
     Type:  enhancement        |         Status:  merge_ready
 Priority:  Medium             |      Milestone:  CollecTor 1.2.0
Component:  Metrics/CollecTor  |        Version:
 Severity:  Normal             |     Resolution:
 Keywords:                     |  Actual Points:
Parent ID:                     |         Points:
 Reviewer:                     |        Sponsor:
-------------------------------+---------------------------------
Changes (by iwakeh):

 * status:  needs_review => merge_ready


Comment:

 Now, things work with both 1.9.0 and more importantly 2.0.0.  Checks and
 tests pass.

   **Reminder**: Deploying this tickets changes needs extensive testing as
 the bulk of changes is **not** (yet) covered by tests.

 Merge ready.

 PS: Would be fine to set the ticket to needs-revision when you __start__
 working on it again in order to avoid possible duplicated work (but not
 too much was duplicated this time).

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/22652#comment:16>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online