Update Cosmos API dependency and configure Altitude snapshot repository

settings.gradle.kts

@@ -1,9 +1,21 @@
+import org.gradle.kotlin.dsl.maven
+
+val nexusUser = providers.gradleProperty("alttdSnapshotUsername").orNull ?: System.getenv("NEXUS_USERNAME")
+val nexusPass = providers.gradleProperty("alttdSnapshotPassword").orNull ?: System.getenv("NEXUS_PASSWORD")
+
 rootProject.name = "AltitudeParticles"
 
 dependencyResolutionManagement {
     repositories {
         mavenLocal()
         mavenCentral()
+        maven {
+            url = uri("https://repo.alttd.com/repository/alttd-snapshot/")
+            credentials {
+                username = nexusUser
+                password = nexusPass
+            }
+        }
         maven("https://repo.destro.xyz/snapshots") // Galaxy
         maven("https://papermc.io/repo/repository/maven-public/") // Paper
         maven("https://jitpack.io") //PremiumVanish