add gpg

Author: tothambrus11

.github/workflows/test.yml

@@ -122,6 +122,9 @@ jobs:
       with:
         xcode-version: latest-stable
 
+    - name: Import Swift GPG Key (Ubuntu Only)
+        if: runner.os == 'Linux' # Only run this on Ubuntu runners
+      run: gpg --keyserver hkp://keyserver.ubuntu.com --recv-keys '52BB 7E3D E28A 71BE 22EC 05FF EF80 A866 B47A 981F'
     - name: 'Set up swift (non-Windows)'
       if: ${{ runner.os != 'Windows' }}
       uses: SwiftyLab/setup-swift@latest