Update dlv in the dev-env

Signed-off-by: Rob Murray <[email protected]>

Dockerfile

@@ -147,7 +147,7 @@ RUN git init . && git remote add origin "https://github.com/go-delve/delve.git"
 # from the https://github.com/go-delve/delve repository.
 # It can be used to run Docker with a possibility of
 # attaching debugger to it.
-ARG DELVE_VERSION=v1.21.1
+ARG DELVE_VERSION=v1.23.0
 RUN git fetch -q --depth 1 origin "${DELVE_VERSION}" +refs/tags/*:refs/tags/* && git checkout -q FETCH_HEAD
 
 FROM base AS delve-supported