delete duplicate app 2.js file and update github actions to v4

Author: codomposer

.github/workflows/merge.yml

@@ -14,10 +14,10 @@ jobs:
         node-version: [20.x]
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Use Node.js ${{ matrix.node-version }}
-      uses: actions/setup-node@v3
+      uses: actions/setup-node@v4
       with:
         node-version: ${{ matrix.node-version }}
 
@@ -27,7 +27,7 @@ jobs:
         npm run build
     
     - name: Get version
-      run: echo "::set-output name=version::v$(./ci/getVersion.sh)"
+      run: echo "version=v$(./ci/getVersion.sh)" >> $GITHUB_OUTPUT
       id: version
 
     - name: Verify version

.github/workflows/release.yml

@@ -13,10 +13,10 @@ jobs:
         node-version: [20.x]
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Use Node.js ${{ matrix.node-version }}
-      uses: actions/setup-node@v3
+      uses: actions/setup-node@v4
       with:
         node-version: ${{ matrix.node-version }}
 
@@ -29,7 +29,7 @@ jobs:
         zip -r -j static_unminified.zip dist/*
     
     - name: Get version
-      run: echo "::set-output name=version::v$(./ci/getVersion.sh)"
+      run: echo "version=v$(./ci/getVersion.sh)" >> $GITHUB_OUTPUT
       id: version
 
     - name: Verify version