Add CPM

[Alirexaa]

What this PR does / why we need it:

Which issue(s) this PR fixes:

Please reference the issue this PR will close: #2006
Special notes for your reviewer:

I changed healthchecks_elasticsearch_ci.yml and healthchecks_kafka_ci.yml to make ci green.

Elasticsearch tests failed because of mariotoffia/FluentDocker#312 and actions/runner-images#9692.
So I made a temporary fix based on mariotoffia/FluentDocker#312 (comment).

Kafka ci failed because of deprecated images. I did update to new ones.

Does this PR introduce a user-facing change?:

Please make sure you've completed the relevant tasks for this PR, out of the following list:

• Code compiles correctly
• Created/updated tests
• Unit tests passing
• End-to-end tests passing
• Extended the documentation
• Provided sample for the feature

[Alirexaa]

@adamsitnik, please take a look.

[Alirexaa]

@eerhardt, Could you review this PR?
Adding CPM will make it easier for us to target .NET 9.

There are a lot of NU1903 warnings in the project when using VS 17.12.
you can find an example at #2317

[eerhardt]

I just had 2 comments. Everything else looks good to me.

@adamsitnik @unaizorrilla - any concerns with this?

[Alirexaa]

I just had 2 comments. Everything else looks good to me.

@adamsitnik @unaizorrilla - any concerns with this?

Thanks for the review.

[eerhardt]

LGTM. Thanks!

[eerhardt]

Adding CPM will make it easier for us to target .NET 9.

@Alirexaa @unaizorrilla @sungam3r @adamsitnik - do you know of a timeline when HealthChecks 9.0 would be released?

[adamsitnik]

LGTM, thank you for your contribution @Alirexaa !