Update maven-publish.yml

Reverting pipeline step versions

Author: jimbethancourt

.github/workflows/maven-publish.yml

@@ -13,12 +13,12 @@ jobs:
 
     steps:
       - name: Check out Git repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v2
         with:
           ref: main
 
       - name: Set up JDK 11
-        uses: actions/setup-java@v3
+        uses: actions/setup-java@v1
         with:
           java-version: 11