Updated Upstream (Paper)

Upstream has released updates that appear to apply and compile correctly

Paper Changes:
PaperMC/Paper@c1bca9a Add exploded block state to BlockExplodeEvent (#6818)
PaperMC/Paper@94373f0 Fix OfflinePlayer#getPlayerProfile returning deprecated type (#8543)
PaperMC/Paper@7b52db5 Fix buffer-joins-to-world patch
PaperMC/Paper@048ee58 Fix OfflinePlayer getPlayerProfile return type (#8710)
PaperMC/Paper@e05ba98 Avoid to spam the transform event for hoglin->zoglin conversion (#8712)
PaperMC/Paper@8e83c3c Deprecate ProjectileCollideEvent (#8678)
PaperMC/Paper@c59922d Expose signed message in chat events (#8694)
PaperMC/Paper@5717b84 Add config option for spider worldborder climbing (#6448)
PaperMC/Paper@e6f61f7 fix ArmorStandMeta not applying false flags (#8632)
PaperMC/Paper@47abd1c Add EntityPushedByEntityEvent (#7704)
PaperMC/Paper@f26e9cc Tadpole lock API (#8297)
PaperMC/Paper@3331501 Use team display name for quit message (#7127)
PaperMC/Paper@1975fbe Respect SpigotConfig logCommands & fix stopDancing() NPE (#8715)
PaperMC/Paper@78a91df Fix (again) Player#getPlayerProfile no such method error (#8722)
PaperMC/Paper@52718db Updated Upstream (Bukkit/CraftBukkit) (#8714)
PaperMC/Paper@2040c1e Player Flying Fall Damage API (#5357)

settings.gradle.kts

@@ -1,13 +1,34 @@
 import java.util.Locale
 
+if (!file(".git").exists()) {
+    val errorText = """
+        
+        =====================[ ERROR ]=====================
+         The Purpur project directory is not a properly cloned Git repository.
+         
+         In order to build Purpur from source you must clone
+         the Purpur repository using Git, not download a code
+         zip from GitHub.
+         
+         Built Purpur jars are available for download at
+         https://purpurmc.org/downloads
+         
+         See https://github.com/PurpurMC/Purpur/blob/HEAD/CONTRIBUTING.md
+         for further information on building and modifying Purpur.
+        ===================================================
+    """.trimIndent()
+    error(errorText)
+}
+
 pluginManagement {
     repositories {
         gradlePluginPortal()
-        maven("https://papermc.io/repo/repository/maven-public/")
+        maven("https://repo.papermc.io/repository/maven-public/")
     }
 }
 
 rootProject.name = "purpur"
+
 for (name in listOf("Purpur-API", "Purpur-Server")) {
     val projName = name.toLowerCase(Locale.ENGLISH)
     include(projName)