Lowered ProtocolLib version requirement

- Updated README.md
- Updated tests.yml workflow

.github/workflows/tests.yml

@@ -86,7 +86,7 @@ jobs:
           VERSION: ${{ matrix.version }}
         run: |
           case "$VERSION" in
-            1.16.5|1.17.1|1.18.2|1.19.4|1.20.6|1.21.5)
+            1.16.5|1.17.1|1.18.2|1.19.4|1.20.6)
               url="https://github.com/dmulloy2/ProtocolLib/releases/download/5.3.0/ProtocolLib.jar"
               ;;
             *)

README.md

@@ -25,7 +25,7 @@ Download the JAR file for the [latest release](https://github.com/josemmo/yamipa
 Before installing Yamipa make sure you meet the following requirements:
 
 - CraftBukkit, Spigot or PaperMC 1.16 or higher
-- [ProtocolLib](https://www.spigotmc.org/resources/protocollib.1997/) v5.4.0 or higher
+- [ProtocolLib](https://www.spigotmc.org/resources/protocollib.1997/) v5.3.0 or higher
 
 Here are the Minecraft distributions where Yamipa should be able to run:
 | Minecraft version | CraftBukkit | Spigot | PaperMC |