Publish to Sonatype Central Portal (#52)

Also need to update the credentials on CI, see https://github.com/adrielcafe/lyricist/blob/98985f6b905cb5337b72358b726f64f1fc90a684/.github/workflows/release.yaml#L34-L35

https://central.sonatype.org/news/20250326_ossrh_sunset/
https://central.sonatype.org/publish/publish-portal-snapshots/#consuming-via-maven

Author: Goooler

README.md

@@ -1,4 +1,4 @@
-[![Maven metadata URL](https://img.shields.io/maven-metadata/v?color=blue&metadataUrl=https://s01.oss.sonatype.org/service/local/repo_groups/public/content/cafe/adriel/lyricist/lyricist/maven-metadata.xml&style=for-the-badge)](https://repo.maven.apache.org/maven2/cafe/adriel/lyricist/)
+[![Maven metadata URL](https://img.shields.io/maven-metadata/v?color=blue&metadataUrl=https://s01.oss.sonatype.org/service/local/repo_groups/public/content/cafe/adriel/lyricist/lyricist/maven-metadata.xml&style=for-the-badge)](https://central.sonatype.com/search?q=g%3Acafe.adriel.lyricist)
 [![Android API](https://img.shields.io/badge/api-21%2B-brightgreen.svg?style=for-the-badge)](https://android-arsenal.com/api?level=21)
 [![kotlin](https://img.shields.io/github/languages/top/adrielcafe/lyricist.svg?style=for-the-badge&color=blueviolet)](https://kotlinlang.org/)
 [![ktlint](https://img.shields.io/badge/code%20style-%E2%9D%A4-FF4081.svg?style=for-the-badge)](https://ktlint.github.io/)

gradle.properties

@@ -29,7 +29,7 @@ ksp.incremental.log=false
 kotlin.suppressGradlePluginWarnings=IncorrectCompileOnlyDependencyWarning
 
 # Maven
-SONATYPE_HOST=S01
+SONATYPE_HOST=CENTRAL_PORTAL
 SONATYPE_AUTOMATIC_RELEASE=true
 RELEASE_SIGNING_ENABLED=true