fix: Remove vane-waterfall + add java 21

.github/workflows/build.yml

@@ -3,23 +3,31 @@ name: Build
 on:
   push:
   pull_request:
+  workflow_dispatch:
 
 jobs:
   build:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        project: [ 'admin', 'bedtime', 'core', 'enchantments', 'permissions', 'portals', 'regions', 'trifles', 'waterfall', 'velocity' ]
+        project: [ 'admin', 'bedtime', 'core', 'enchantments', 'permissions', 'portals', 'regions', 'trifles', 'velocity' ]
 
     steps:
-      - uses: actions/checkout@v3.0.0
+      - uses: actions/checkout@v4
 
       - name: Set up JDK 17
-        uses: actions/setup-java@v3.0.0
+        uses: actions/setup-java@v4
         with:
           java-version: 17
           distribution: 'temurin'
 
+
+      - name: Set up JDK 21
+        uses: actions/setup-java@v4
+        with:
+          java-version: 21
+          distribution: 'temurin'
+
       - name: Gradle build
         run: |
           cd vane-${{ matrix.project }}
@@ -29,8 +37,8 @@ jobs:
           echo "git_hash=$git_hash" >> $GITHUB_ENV
 
       - name: Upload JAR
-        if: ${{ github.event_name == 'push' }}
-        uses: actions/upload-artifact@v3
+        if: ${{ github.event_name != 'pull_request'}}
+        uses: actions/upload-artifact@v4
         with:
           name: vane-${{ matrix.project }}-${{ env.git_hash }}.jar
           path: target/vane-${{ matrix.project }}-*.jar