Set the current commit to the last commit used in Paper's 1.21.1 branch, update the auto-update script to only update based on the 1.21.1 Paper branch

.github/workflows/auto-update.yml

@@ -19,7 +19,7 @@ jobs:
         with:
           path: 'Paper'
           repository: "PaperMC/Paper"
-          ref: 'master'
+          ref: 'ver/1.21.1'
           token: ${{ secrets.LORITTA_PAT }}
       
       - name: Get Paper Latest Commit Hash

gradle.properties

@@ -2,7 +2,7 @@ group=net.sparklypower.sparklypaper
 version=1.21.1-R0.1-SNAPSHOT
 
 mcVersion=1.21.1
-paperRef=52a05907c7a84583c26b8d0b9d5fdf8a5825c8d0
+paperRef=84281ceeefb9d294758a9a292ba6c01da40e8409
 
 org.gradle.caching=true
 org.gradle.parallel=true