Retry to install gnupg 3 times

.github/workflows/issue-reproduced.yml

@@ -28,7 +28,8 @@ jobs:
       - name: Install native GnuPG (Gpg4win) and put it first on PATH
         shell: powershell
         run: |
-          choco install gnupg -y --no-progress
+          choco config set commandExecutionTimeout 600
+          choco install gnupg -y --no-progress --retries 3 --retry-delay 5
           # The reporter's gpg lives at C:\Program Files (x86)\GnuPG\bin\gpg.exe.
           # Prepend the native GnuPG dir to PATH so `gpg` resolves to it (and NOT to
           # the Git-for-Windows build, which would mask the bug by accepting /r/... paths).