Feature: update project version to 0.2.4.1-SNAPSHOT, implement singleton pattern in MCSupport, and adjust work-jar.yml for branch permissions

Author: Sandro642

.github/workflows/work-jar.yml

@@ -3,6 +3,7 @@ on:
   push:
     branches:
       - main
+      - fix/mcs
 permissions:
   contents: write
   pages: write

build.gradle

@@ -5,7 +5,7 @@ plugins {
 }
 
 group = 'fr.sandro642.github'
-version = '0.2.4-STABLE'
+version = '0.2.4.1-SNAPSHOT'
 
 tasks.register('printVersion') {
     doLast {

src/main/java/fr/sandro642/github/hook/MCSupport.java

@@ -114,6 +114,9 @@ public void resetPlugin() {
      * @return The singleton instance of MCSupport.
      */
     public static MCSupport getInstance() {
+        if (instance == null) {
+            instance = new MCSupport();
+        }
         return instance;
     }
 }