Add APM Server Support for Ubuntu 22.04

[chrisdistasio]

Ubuntu 22.04 was released on April 21, 2022 and is supported by stack (8.3) and Elastic Agent (8.4)

Align with Elastic Agent platform support to ensure we have supported coverage for APM Integration.

Related Agent issue

Test and ongoing support for APM Server on Ubuntu 22.04.

[simitt]

Conduct manual smoke testing for the standalone and Fleet managed APM Server. At least the following should be tested:

• install APM Server
• Set up templates, ILM policies, ingest pipelines via APM Integration
• Enable Tail Based Sampling
• Send APM data to APM Server
• Verify data are successfully ingested into ES

[axw]

Set up templates, ILM policies, ingest pipelines via APM Integration

I'm considering this a prerequisite rather than something that should be tested, as it's not influenced by where or how APM Server is running.

[axw]

Tested with Ubuntu 22.04 x86_64 on GCP, using 8.4.0-BC1. I've tested both the Debian package (legacy), and Elastic Agent integration, using TBS with the latter. All good.

[axw]

Reopening so we can track adding to the support matrix.

[simitt]

@chrisdistasio you can add it to the support matrix for 8.4. Please close this issue when done.

[simitt]

Was added to the support matrix draft.