Re-add libprotobuf.

A few updates to the Debian package have happened so let's see.

Re-add libprotobuf.
4bfddaed · nimrod · f5849a8e · 4bfddaed
Commit 4bfddaed authored 1 year ago by nimrod
--- a/workbench/Dockerfile
+++ b/workbench/Dockerfile
@@ -86,6 +86,7 @@ RUN apt-get update && \
        libnotify-bin \
        libpq-dev \
        libproj-dev \
+        libprotobuf-dev \
        libreadline-dev \
        libsasl2-dev \
        libsecret-tools \