Update Dockerfile to include gpgv for enhanced security during package installation

images/aptly-server/Dockerfile

@@ -64,7 +64,7 @@ LABEL org.opencontainers.image.title="aptly-server" \
 RUN --mount=type=cache,target=/var/cache/apt,sharing=locked \
     --mount=type=cache,target=/var/lib/apt,sharing=locked \
     apt-get update && apt-get install -y --no-install-recommends \
-      ca-certificates gnupg bzip2 xz-utils curl jq gettext-base openssl \
+      ca-certificates gnupg gpgv bzip2 xz-utils curl jq gettext-base openssl \
     && rm -rf /var/lib/apt/lists/* \
     && addgroup --system --gid 10001 aptly \
     && adduser --system --uid 10001 --ingroup aptly --home /var/lib/aptly --disabled-password aptly \