ci : install libssl-dev (ggml-org#23325)

Author: CISC

.github/workflows/server-self-hosted.yml

@@ -160,6 +160,7 @@ jobs:
           sudo DEBIAN_FRONTEND=noninteractive NEEDRESTART_MODE=a \
           apt-get install -y \
            build-essential \
+           libssl-dev \
            python3-venv \
            gpg \
            wget \