Nexmo Server SDK V5 Support

[cr0wst]

This PR adds support for the 5.2.1 server SDK as well as updates the targeted spring-boot version.

[cr0wst]

I'm working on a blog post around piping Conversation API events into Kafka + Snowflake for processing. I noticed that the starter hasn't been updated in a while, so I took the opportunity to migrate from v4 to v5 of the Nexmo Server SDK.

[codecov-commenter]

Codecov Report

Merging #6 into master will not change coverage.
The diff coverage is n/a.

@@             Coverage Diff             @@
##              master        #6   +/-   ##
===========================================
  Coverage     100.00%   100.00%           
  Complexity        25        25           
===========================================
  Files              2         2           
  Lines             33        33           
  Branches           4         4           
===========================================
  Hits              33        33           

Impacted Files	Coverage Δ	Complexity Δ
...kotlin/com/nexmo/starter/NexmoAutoConfiguration.kt	100.00% <ø> (ø)	25.00 <0.00> (ø)

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[cr0wst]

Any chance at getting this reviewed/released sometime soonish?

Thanks!

[cr0wst]

It's me again. It looks like the server SDK is now on 5.5.0. I can update to target that.

[yallen011]

Hi @cr0wst sorry about the late response. We were so tied up in the rebrand that I didn't notice your comments. Yes, updating to 5.5.0 would be very helpful. Also, can you switch it to the com.vonage.client:5.5.0 dependency instead since we are in the process of moving everything over to use that dependency since the rebrand. They have the exact same functionality, the code that use the vonage namespace instead now.

[cr0wst]

Sure. I'll swap that over here shortly. If you need any help with renaming the package for this project too, just let me know! :)

[codecov-io]

Codecov Report

Merging #6 into master will not change coverage.
The diff coverage is 100.00%.

@@             Coverage Diff             @@
##              master        #6   +/-   ##
===========================================
  Coverage     100.00%   100.00%           
  Complexity        25        25           
===========================================
  Files              2         2           
  Lines             33        33           
  Branches           4         4           
===========================================
  Hits              33        33           

Impacted Files	Coverage Δ	Complexity Δ
...kotlin/com/nexmo/starter/NexmoAutoConfiguration.kt	100.00% <100.00%> (ø)	25.00 <11.00> (ø)

---

Continue to review full report at Codecov.

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Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 6247b4c...9c81bc0. Read the comment docs.

[cr0wst]

Updated the references to the old Nexmo address. I didn't update some of the properties because I didn't know how far you wanted to take it.