Only run Apple cert steps on macos

.github/workflows/publish.yml

@@ -28,19 +28,19 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - name: install dependencies (ubuntu only)
+      - name: Install dependencies (ubuntu only)
         if: matrix.platform == 'ubuntu-22.04' # This must match the platform value defined above.
         run: |
           sudo apt-get update
           sudo apt-get install -y libwebkit2gtk-4.1-dev libappindicator3-dev librsvg2-dev patchelf
 
-      - name: setup node
+      - name: Setup node
         uses: actions/setup-node@v4
         with:
           node-version: lts/*
           cache: 'npm'
 
-      - name: install Rust stable
+      - name: Install Rust stable
         uses: dtolnay/rust-toolchain@stable # Set this to dtolnay/rust-toolchain@nightly
         with:
           # Those targets are only used on macos runners so it's in an `if` to slightly speed up windows and linux builds.
@@ -51,10 +51,11 @@ jobs:
         with:
           workspaces: './src-tauri -> target'
 
-      - name: install frontend dependencies
+      - name: Install FrontEnd dependencies
         run: npm install
 
       - name: Import Apple Developer Certificate
+        if: runner.os == 'macOS'
         env:
           APPLE_CERTIFICATE: ${{ secrets.APPLE_CERTIFICATE }}
           APPLE_CERTIFICATE_PASSWORD: ${{ secrets.APPLE_CERTIFICATE_PASSWORD }}
@@ -68,7 +69,8 @@ jobs:
           security set-key-partition-list -S apple-tool:,apple:,codesign: -s -k "$KEYCHAIN_PASSWORD" build.keychain
           security find-identity -v -p codesigning build.keychain
 
-      - name: Verify Certificate
+      - name: Verify Apple Certificate
+        if: runner.os == 'macOS'
         run: |
           CERT_INFO=$(security find-identity -v -p codesigning build.keychain | grep "Developer ID Application")
           CERT_ID=$(echo "$CERT_INFO" | awk -F'"' '{print $2}')