feat: use Player#getPing for 1.17+

[iGabyTM]

This was suggested by @Tanguygab on discord:

Hey, just realized that 1.17 added a getPing method in the Player class, it could be better to use that in the Player Expansion in case another version changes the ping field, so you use reflection as usual for 1.16- (the field is just "ping" I think) and on 1.17+ you use the method
It would prevent the placeholder to break on new MC versions, again

[NicoNekoDev]

Please release an update fixing errors with 1.20+ related to this.

[iGabyTM]

Version 2.0.5 Release Notes
Adds support for ping on 1.20.x

https://api.extendedclip.com/expansions/player/

[Tanguygab]

1.20.2 broke it again and the 2.0.6 release doesn't use the getPing() method from Spigot API yet so it still tries to find the field from older versions

[NicoNekoDev]

For me it shows that the latest version is 2.0.5 updated on June 16, 2023, this pull request was merged on August 27, 2023.
On 1.20.2, version 2.0.5 is broken with the error shown in issue #88

[iGabyTM]

Ahh I see. I will release an update in a few.

[iGabyTM]

It is live @NicoNekoDev you can download it manually from the eCloud, it will take 1-2h to be available in game due to caching.

[Tanguygab]

The code of the expansion on the ecloud doesn't match the one from the repo, people are still experiencing the issue (I just tried and I can confirm it still happens)