Add support for Play 2.9 (and afterwards in another pull request Play 3.0)

[mkurz]

Hi,

Play 2.9 got released:

• https://twitter.com/playframework/status/1721576472047911007
• https://www.playframework.com/documentation/latest/Highlights29

This pull request adds support for it.

After this got merged, I will provide another pull request for Play 3.0 (https://www.playframework.com/documentation/latest/Highlights30).

Thanks!

[fdimuccio]

Hi, thank you!

[mkurz]

@fdimuccio thanks, can you please release version 0.9.0? Afterwards I will open the next pull request with Play 3.0 support. Thanks!

[fdimuccio]

You are welcome. I published 0.9.0 today, it should be already available from the central repository. Mirrors could take a bit longer.

[mkurz]

Thanks, I see it's here: https://repo1.maven.org/maven2/com/github/fdimuccio/play2-sockjs_2.13/

Here is the pull request for Play 3 and Scala 3 support:

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