ArcLight 1.20.1 encountered an error while installing dynmap-spigot.

[ZHYxulei]

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Issue Description: The server has started successfully, but dynmap is throwing an error. No configuration file was used to generate the necessary files, but the commands are usable..

• Dynmap Version: Dynmap-3.8-spigot.jar
• Server Version: arclight 1.20.1
• Pastebin of Configuration.txt: No configuration file
• Pastebin of crashlogs or other relevant logs: https://pastebin.com/HES3hC0t
• Steps to Replicate: An error occurred after installing and starting the dynmap server using the latest version of Arclight 1.20.1.

issue log: [21:52:54 ERROR] [Minecraft]: Error occurred while enabling dynmap v3.7-SNAPSHOT-1015 (Is it up to date?)
java.lang.IllegalAccessError: class org.dynmap.bukkit.helper.v120.BukkitVersionHelperSpigot120 tried to access private field net.minecraft.world.level.biome.Biome.f_47437_ (org.dynmap.bukkit.helper.v120.BukkitVersionHelperSpigot120 is in unnamed module of loader org.bukkit.plugin.java.PluginClassLoader @1b33beb1; net.minecraft.world.level.biome.Biome is in module minecraft@1.20.1 of loader 'TRANSFORMER' @2ccecae2)
at org.dynmap.bukkit.helper.v120.BukkitVersionHelperSpigot120.getBiomeBaseHumidity(BukkitVersionHelperSpigot120.java:234) ~[?:?]
at org.dynmap.bukkit.DynmapPlugin.loadExtraBiomes(DynmapPlugin.java:859) ~[?:?]
at org.dynmap.bukkit.DynmapPlugin.onEnable(DynmapPlugin.java:936) ~[?:?]
at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPluginMixin.java:266) ~[arclight-1.20.1-1.0.6-SNAPSHOT-166b7ad.jar%23261!/:arclight-1.20.1-1.0.6-SNAPSHOT-166b7ad]
at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoaderMixin.java:342) ~[arclight-1.20.1-1.0.6-SNAPSHOT-166b7ad.jar%23261!/:arclight-1.20.1-1.0.6-SNAPSHOT-166b7ad]
at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManagerAccessor.java:480) ~[arclight-1.20.1-1.0.6-SNAPSHOT-166b7ad.jar%23261!/:arclight-1.20.1-1.0.6-SNAPSHOT-166b7ad]
at org.bukkit.craftbukkit.v1_20_R1.CraftServer.enablePlugin(CraftServerMixin.java:546) ~[arclight-1.20.1-1.0.6-SNAPSHOT-166b7ad.jar%23261!/:arclight-1.20.1-1.0.6-SNAPSHOT-166b7ad]
at org.bukkit.craftbukkit.v1_20_R1.CraftServer.enablePlugins(CraftServerMixin.java:460) ~[arclight-1.20.1-1.0.6-SNAPSHOT-166b7ad.jar%23261!/:arclight-1.20.1-1.0.6-SNAPSHOT-166b7ad]
at net.minecraft.server.MinecraftServer.handler$bkn000$arclight$enablePlugins(MinecraftServerMixin.java:2638) ~[server-1.20.1-20230612.114412-srg.jar%23357!/:?]
at net.minecraft.server.MinecraftServer.m_129815_(MinecraftServerMixin.java:385) ~[server-1.20.1-20230612.114412-srg.jar%23357!/:?]
at net.minecraft.server.MinecraftServer.m_130006_(MinecraftServerMixin.java:308) ~[server-1.20.1-20230612.114412-srg.jar%23357!/:?]
at net.minecraft.server.dedicated.DedicatedServer.m_7038_(DedicatedServerMixin.java:164) ~[server-1.20.1-20230612.114412-srg.jar%23357!/:?]
at net.minecraft.server.MinecraftServer.m_130011_(MinecraftServerMixin.java:2529) ~[server-1.20.1-20230612.114412-srg.jar%23357!/:?]
at net.minecraft.server.MinecraftServer.m_206580_(MinecraftServerMixin.java:251) ~[server-1.20.1-20230612.114412-srg.jar%23357!/:?]
at java.lang.Thread.run(Thread.java:1583) ~[?:?]

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