Update ubuntu:22.04 Docker digest to dcd7ed8

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

Dockerfile

@@ -1,4 +1,4 @@
-FROM ubuntu:22.04@sha256:ab75ad5f473e7d04598c975c4dd9ee5d23449334425b9cc46eecc10879f19858 as prometheus-cpp-builder
+FROM ubuntu:22.04@sha256:dcd7ed8cfc7fd38ad9f7bf550263e626982e5daa7be0b2d5132130a478ecda9b 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/*