Akka Diagnostics 2.0.0

Akka diagnostics was previously a commercial only extension for Akka but has now been made publicly available under the terms of the BSL.

Additional improvements and changes

• feat: suport for JDK 17 by @franciscolopezsancho in #20
• feat: detect thread starvation on internal dispatcher by @patriknw in #10
• feat: config checker enhancements by @franciscolopezsancho in #21
• feat: Cross build for Scala 3 by @patriknw in #30
• fix: disabled-typo-sections for r2dbc durable state by @patriknw in #29
• bug: Dealing with persistence testkit plugin configuration by @franciscolopezsancho in #32
• chore: Adding config checker starting message and removing unnecessary dependencies by @franciscolopezsancho in #23
• chore: akka-actor is the only required dependency by @patriknw in #25
• docs: adding reference to akka-http docs back by @franciscolopezsancho in #26
• chore: using the provider by @franciscolopezsancho in #34
• chore: small cleanup by @patriknw in #35
• test: harden StarvationDetectorSpec, #15 by @patriknw in #36
• chore: License year for release by @johanandren in #37

Full Changelog: a7c322a...v2.0.0