Remove GPG key generation from build workflow

Removed temporary GPG key generation step for AppImage.

.github/workflows/tauri-build.yml

@@ -64,7 +64,7 @@ jobs:
             esac
           else
             # For PR/push events, build all platforms
-            echo 'matrix={"include":[{"platform":"windows-latest","args":"--target x86_64-pc-windows-msvc","name":"windows-x86_64"},{"platform":"macos-15","args":"--target aarch64-apple-darwin","name":"macos-aarch64"},{"platform":"macos-15-intel","args":"--target x86_64-apple-darwin","name":"macos-x86_64"},{"platform":"ubuntu-22.04","args":"--target x86_64-unknown-linux-gnu -b appimage,deb,rpm --verbose","name":"linux-x86_64"}]}' >> $GITHUB_OUTPUT
+            echo 'matrix={"include":[{"platform":"windows-latest","args":"--target x86_64-pc-windows-msvc","name":"windows-x86_64"},{"platform":"macos-15","args":"--target aarch64-apple-darwin","name":"macos-aarch64"},{"platform":"macos-15-intel","args":"--target x86_64-apple-darwin","name":"macos-x86_64"},{"platform":"ubuntu-22.04","args":"--target x86_64-unknown-linux-gnu -b appimage,deb,rpm","name":"linux-x86_64"}]}' >> $GITHUB_OUTPUT
           fi
 
   build:
@@ -330,23 +330,6 @@ jobs:
           echo "Available tools:"
           ls -la /usr/bin/hd* || echo "No hd* tools found"
 
-      - name: Generate temporary GPG key for AppImage
-        if: matrix.platform == 'ubuntu-22.04'
-        run: |
-          cat >keyparams <<'EOF'
-          %no-protection
-          Key-Type: RSA
-          Key-Length: 2048
-          Name-Real: CI AppImage Signer
-          Name-Email: ci-appimage@example.invalid
-          Expire-Date: 0
-          %commit
-          EOF
-
-          gpg --batch --generate-key keyparams
-          echo "Generated temporary GPG key:"
-          gpg --list-secret-keys --keyid-format=long
-
       - name: Build Tauri app
         uses: tauri-apps/tauri-action@v0
         env: