fix(deps): update dependency io.papermc.paper:paper-api to v26

Author: renovate[bot]

gradle/libs.versions.toml

@@ -2,7 +2,7 @@ metadata.format.version = "1.1"
 
 [versions]
 
-paper = "1.21.8-R0.1-SNAPSHOT"
+paper = "26.1.2.build.60-stable"
 
 runtask = "3.0.0"