Add version metadata

[gianpaulrachiele]

What does this PR do?

Submits metadata to inventories which is already collected by the Zookeeper Integration
Add tests

Review checklist (to be filled by reviewers)

• Feature or bugfix MUST have appropriate tests (unit, integration, e2e)
• PR title must be written as a CHANGELOG entry (see why)
• Files changes must correspond to the primary purpose of the PR as described in the title (small unrelated changes should have their own PR)
• PR must have changelog/ and integration/ labels attached

[codecov]

Codecov Report

Merging #4927 into master will decrease coverage by 6.94%.
The diff coverage is 94.73%.

Impacted Files	Coverage Δ
zk/tests/common.py	100% <100%> (ø)	⬆️
zk/tests/conftest.py	94% <100%> (+0.12%)	⬆️
zk/tests/test_zk.py	97.67% <100%> (+0.61%)	⬆️
zk/datadog_checks/zk/zk.py	75.84% <83.33%> (+0.23%)	⬆️
...checks_dev/tests/plugin/test_environment_runner.py
oracle/tests/test_oracle.py
...r/datadog_checks/openstack_controller/__about__.py
twistlock/datadog_checks/twistlock/twistlock.py
linkerd/datadog_checks/linkerd/linkerd.py
...oller/datadog_checks/openstack_controller/utils.py
... and 828 more

[AlexandreYang]

Looks good, just few minor comments.

[ruthnaebeck]

No review needed from docs