fix: Be flexible in zlib versions

[qmfrederik]

• Support versions with major.minor version number only
• Support versions with more than one digit in the revision number

[qmfrederik]

@terriko I've fixed the test in this PR and rebased on main, but that will require you to re-approve the workflow.

[terriko]

@qmfrederik I've approved the workflow, and I've pinged my ops people to see if I can get you added to the list of people who can run workflows without me manually approving them. Assuming they agree, you should get an invite to a group with a really long name like intel_cve-bin-tool_tests or something in the next couple of days; please accept it if you'd like to be able to trigger github actions tests on your own!

[qmfrederik]

Roger that, thanks @terriko !

[terriko]

Merge time! And the ops folk tell me that the team name is cve-bin-tool-read so look out for that invitation soon now that I've got the request correct in their system.