Forgot to update actions

.github/workflows/build.yml

@@ -10,12 +10,6 @@ jobs:
   build:
     strategy:
       matrix:
-        # Use these Java versions
-        java: [
-            1.8,  # Minimum supported by Minecraft
-            11,   # Current Java LTS
-            15    # Latest version
-        ]
         # and run on both Linux and Windows
         os: [ubuntu-20.04, windows-latest]
     runs-on: ${{ matrix.os }}
@@ -24,17 +18,17 @@ jobs:
         uses: actions/checkout@v2
       - name: validate gradle wrapper
         uses: gradle/wrapper-validation-action@v1
-      - name: setup jdk ${{ matrix.java }}
+      - name: setup jdk 16
         uses: actions/setup-java@v1
         with:
-          java-version: ${{ matrix.java }}
+          java-version: 16
       - name: make gradle wrapper executable
         if: ${{ runner.os != 'Windows' }}
         run: chmod +x ./gradlew
       - name: build
         run: ./gradlew build
       - name: capture build artifacts
-        if: ${{ runner.os == 'Linux' && matrix.java == '11' }} # Only upload artifacts built from LTS java on one OS
+        if: ${{ runner.os == 'Linux' }} # Only upload artifacts built from LTS java on one OS
         uses: actions/upload-artifact@v2
         with:
           name: Artifacts