Update version ranges

Author: mikeprimm-mirific

README.md

@@ -46,10 +46,10 @@ The following target platforms are supported, and you can find them at the links
 
 | Server type  | Version | Dynmap JAR | Where? |
 | ------------ | ------- | ---------- | ------ |
-| Spigot/PaperMC | ≤1.20.6  | `Dynmap-<version>-spigot.jar` | [SpigotMC](https://www.spigotmc.org/resources/dynmap%C2%AE.274/) |
-| Spigot/PaperMC | ≤1.20.6 | `Dynmap-<version>-spigot.jar` | [Modrinth](https://modrinth.com/plugin/dynmap/versions?l=paper&l=spigot) |
-| Forge | 1.12.2 - 1.20.x | `Dynmap-<version>-forge-<MC_VERSION>.jar` | [Curseforge](https://www.curseforge.com/minecraft/mc-mods/dynmapforge) |
-| Fabric | 1.15.2 - 1.20.x | `Dynmap-<version>-fabric-<MC_VERSION>.jar` | [Curseforge](https://www.curseforge.com/minecraft/mc-mods/dynmapforge) |
+| Spigot/PaperMC | ≤1.21.4  | `Dynmap-<version>-spigot.jar` | [SpigotMC](https://www.spigotmc.org/resources/dynmap%C2%AE.274/) |
+| Spigot/PaperMC | ≤1.21.4 | `Dynmap-<version>-spigot.jar` | [Modrinth](https://modrinth.com/plugin/dynmap/versions?l=paper&l=spigot) |
+| Forge | 1.12.2 - 1.20.6 | `Dynmap-<version>-forge-<MC_VERSION>.jar` | [Curseforge](https://www.curseforge.com/minecraft/mc-mods/dynmapforge) |
+| Fabric | 1.14.4 - 1.21.4 | `Dynmap-<version>-fabric-<MC_VERSION>.jar` | [Curseforge](https://www.curseforge.com/minecraft/mc-mods/dynmapforge) |
 
 # Data Storage
 Dynmap supports the following storage backends: