Improve the release pipeline to use github packages

[NipunaRanasinghe]

Description:
Currently the lsp4intellij release artifacts are only available in jitpack(jitpack support was added before the introduction of github packages).
Therefore the plan is to eventually migrate to the github packages. We'll be supporting both platforms initially and, the jitpack support will be removed after sometime.

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[nixel2007]

I highly advise you to migrate to maven central instead of GHP, which still requires auth even for downloading the packages.

[NipunaRanasinghe]

I highly advise you to migrate to maven central instead of GHP, which still requires auth even for downloading the packages.

@nixel2007 This decision was taken because almost all the repos under our organization are currently using GH packages. Anyway we are already aware of the auth restrictions when using GH packages and, currently I'm exploring the possibility of using nexus for this, which doesn't have the limitation you mentioned.

[nixel2007]

@NipunaRanasinghe ok, thanks for clarification.
If you need I can share with you several PRs with our (1c-syntax) migration from jitpack to maven central/sonatype OSS nexus.