Build for more Java versions

Author: calvinlfer

.github/workflows/ci.yml

@@ -24,7 +24,7 @@ jobs:
       matrix:
         os: [ubuntu-latest]
         scala: [2.12.19, 2.13.13, 3.3.3]
-        java: [temurin@11]
+        java: [temurin@11, temurin@17, temurin@21]
     runs-on: ${{ matrix.os }}
     steps:
       - name: Checkout current branch (full)
@@ -40,6 +40,22 @@ jobs:
           java-version: 11
           cache: sbt
 
+      - name: Setup Java (temurin@17)
+        if: matrix.java == 'temurin@17'
+        uses: actions/setup-java@v4
+        with:
+          distribution: temurin
+          java-version: 17
+          cache: sbt
+
+      - name: Setup Java (temurin@21)
+        if: matrix.java == 'temurin@21'
+        uses: actions/setup-java@v4
+        with:
+          distribution: temurin
+          java-version: 21
+          cache: sbt
+
       - name: Check that workflows are up to date
         run: sbt '++ ${{ matrix.scala }}' githubWorkflowCheck
 
@@ -82,6 +98,22 @@ jobs:
           java-version: 11
           cache: sbt
 
+      - name: Setup Java (temurin@17)
+        if: matrix.java == 'temurin@17'
+        uses: actions/setup-java@v4
+        with:
+          distribution: temurin
+          java-version: 17
+          cache: sbt
+
+      - name: Setup Java (temurin@21)
+        if: matrix.java == 'temurin@21'
+        uses: actions/setup-java@v4
+        with:
+          distribution: temurin
+          java-version: 21
+          cache: sbt
+
       - name: Download target directories (2.12.19)
         uses: actions/download-artifact@v4
         with: