Hardcode region to us-west-2 in setup_jwt_cookie.sh

[benbart]

Running this was causing an error despite setting the region in the aws creds. Hardcoding it to us-west-2 is a reasonable solution since we're never not deploying cumulus to that region.

[etcart]

your region needs to be set in a way that (to me) is nonsensical, but this is an aws cli problem not a cirrus problem (IMO)
you can set it in a file called ~/.aws/config (not credentials)
with a block that looks like

[profile cumulus-sit]
region = us-west-2

where cumulus-sit is my profile name
this is different from your credentials file where that block looks like

[cumulus-sit]
credentials.....

(not [profile cumulus-sit])
why the diff? I don't know but setting this right fixed things for me

additionally, if we're going to hardcode region that needs to be done in env.sh as well where the same thing happens