Bump io.papermc.paper:paper-api in /i18n

Bumps io.papermc.paper:paper-api from 1.21-R0.1-SNAPSHOT to 1.21.1-R0.1-SNAPSHOT.

---
updated-dependencies:
- dependency-name: io.papermc.paper:paper-api
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

i18n/build.gradle.kts

@@ -30,7 +30,7 @@ dependencies {
     compileOnly("org.projectlombok:lombok:1.18.34")
     compileOnly("org.jetbrains:annotations:24.1.0")
 
-    testImplementation("io.papermc.paper:paper-api:1.21-R0.1-SNAPSHOT")
+    testImplementation("io.papermc.paper:paper-api:1.21.1-R0.1-SNAPSHOT")
     testImplementation(project(":utils"))
     testImplementation(project(":files"))