Add support for mariadb-vector as backing vector DB (#21931)

Dockerfile

@@ -127,6 +127,7 @@ RUN chown -R $UID:$GID /app $HOME
 RUN apt-get update && \
     apt-get install -y --no-install-recommends \
     git build-essential pandoc gcc netcat-openbsd curl jq \
+    libmariadb-dev \
     python3-dev \
     ffmpeg libsm6 libxext6 zstd \
     && rm -rf /var/lib/apt/lists/*