temurin doesn't have a jdk 21 build

Author: hmottestad

.github/workflows/dash-license.yml

@@ -10,11 +10,10 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v2
       - name: Set up JDK
-        uses: actions/setup-java@v3
+        uses: actions/setup-java@v1
         with:
-          distribution: 'temurin'
           java-version: '21'
       - name: Cache local Maven repository
         uses: actions/cache@v3