chore(deps): update ubuntu:22.04 docker digest to 19478ce

Signed-off-by: usa-reddragon-renovate-ce[bot]@users.noreply.github.com

Dockerfile

@@ -1,4 +1,4 @@
-FROM ubuntu:22.04@sha256:39ab14240b6da1cb8c34bd4f498b90b7cf3b6c6aa2d524f45c9501038d6b2709 as prometheus-cpp-builder
+FROM ubuntu:22.04@sha256:19478ce7fc2ffbce89df29fea5725a8d12e57de52eb9ea570890dc5852aac1ac as prometheus-cpp-builder
 
 RUN apt update && export DEBIAN_FRONTEND=noninteractive && \
  apt install -y curl git cmake build-essential file zlib1g-dev && rm -rf /var/lib/apt/lists/*