Add placeholder environment variables to our deploy

Nathan Sobo and Max Brunsfeld created 

We have the ability to define environment-specific environment variables, but don't current need it. This keeps these files in place while avoiding noise from running `export` with no args due to the files being empty.

Co-Authored-By: Max Brunsfeld <maxbrunsfeld@gmail.com>

Change summary

crates/server/k8s/environments/production.sh | 1 +
crates/server/k8s/environments/staging.sh    | 1 +
2 files changed, 2 insertions(+)

Detailed changes