[Elastic Distribution of OpenTelemetry Java]: Change current version to 1.5.0

[KOTungseth]

Type of issue

Inaccurate

What documentation page is affected

https://www.elastic.co/docs/release-notes/edot/sdks/java

What happened?

The current version says 9.0+, but the latest version is 1.5.0.

[theletterf]

Blocked until #1637 is done.