Support 1.20.5

[sfphoton]

Issue Description: Dynmap cannot be enabled in Spigot 1.20.5

It will throw the following exception:

[Server thread/INFO]: [dynmap] Enabling dynmap v3.7-beta-4-935
[Server thread/ERROR]: Error occurred while enabling dynmap v3.7-beta-4-935 (Is it up to date?)
java.lang.NoSuchFieldError: Class net.minecraft.core.BlockPosition does not have member field 'net.minecraft.core.BlockPosition b'
         at org.dynmap.bukkit.helper.v120_4.BukkitVersionHelperSpigot120_4.initializeBlockStates(BukkitVersionHelperSpigot120_4.java:184) ~[?:?]
         at org.dynmap.bukkit.DynmapPlugin.onEnable(DynmapPlugin.java:933) ~[?:?]
         at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:266) ~[spigot-api-1.20.5-R0.1-SNAPSHOT.jar:?]
         at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:342) ~[spigot-api-1.20.5-R0.1-SNAPSHOT.jar:?]
         at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:491) ~[spigot-api-1.20.5-R0.1-SNAPSHOT.jar:?]
         at org.bukkit.craftbukkit.v1_20_R4.CraftServer.enablePlugin(CraftServer.java:541) ~[spigot-1.20.5-R0.1-SNAPSHOT.jar:4123-Spigot-b698b49-90f1059]
         at org.bukkit.craftbukkit.v1_20_R4.CraftServer.enablePlugins(CraftServer.java:455) ~[spigot-1.20.5-R0.1-SNAPSHOT.jar:4123-Spigot-b698b49-90f105>
         at net.minecraft.server.MinecraftServer.loadWorld0(MinecraftServer.java:634) ~[spigot-1.20.5-R0.1-SNAPSHOT.jar:4123-Spigot-b698b49-90f1059]
         at net.minecraft.server.MinecraftServer.loadLevel(MinecraftServer.java:419) ~[spigot-1.20.5-R0.1-SNAPSHOT.jar:4123-Spigot-b698b49-90f1059]
         at net.minecraft.server.dedicated.DedicatedServer.e(DedicatedServer.java:265) ~[spigot-1.20.5-R0.1-SNAPSHOT.jar:4123-Spigot-b698b49-90f1059]
         at net.minecraft.server.MinecraftServer.y(MinecraftServer.java:1010) ~[spigot-1.20.5-R0.1-SNAPSHOT.jar:4123-Spigot-b698b49-90f1059]
         at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:311) ~[spigot-1.20.5-R0.1-SNAPSHOT.jar:4123-Spigot-b698b49-90f1059]
         at java.base/java.lang.Thread.run(Thread.java:1583) [?:?]

• Dynmap Version: v3.7-beta-4-935
• Server Version: spigot 1.20.5 (4123-Spigot-b698b49-90f1059)

• Steps to Replicate:

  1. Download SpigotMC's BuildTools and build version 1.20.5
  2. Install dynmap by dropping the jar file into the Plugins folder
  3. Start the server

  [x] I have looked at all other issues and this is not a duplicate
  [x] I have been able to replicate this

Thanks for your help!

[JurgenKuyper]

1.20.5 is not supported yet, please be patient.

[MrClassicT]

I have been able to get my server to run using dynmap (self build jar) where I just added 1.20.5 to the allowed versions. Though it does not function as desired which makes it not really useful lol. Best just wait until they fix it properly. :) Can't say I'm not curious for when that'll be!

[sfphoton]

I have just built the spigot version from the source with the latest commits of @mikeprimm and it now seems to be fixed. Thank you by the way, that was quick!

Thus, I'm closing this issue.