Fix go runtime specification

[ravwojdyla]

Otherwise make deploy fails with:

~/inverting-proxy$ make deploy
if [ -z "###" ]; then echo "You must specify the PROJECT_ID"; exit 1; fi
gcloud app deploy --project "###" --version v1 ./app/*.yaml
ERROR: (gcloud.app.deploy) Staging command [/usr/lib/google-cloud-sdk/platform/google_appengine/go-app-stager /home/rav/inverting-proxy/app/agent.yaml /home/rav/inverting-proxy/app /tmp/tmpjnzaulxz/tmpps194cax] failed with return code [1].

------------------------------------ STDOUT ------------------------------------
------------------------------------ STDERR ------------------------------------
2022/01/26 09:13:18 invalid runtime value go
--------------------------------------------------------------------------------

Env:

~/inverting-proxy$ gcloud --version
Google Cloud SDK 344.0.0
alpha 2021.06.04
app-engine-go 1.9.72
app-engine-python 1.9.98
beta 2021.06.04
bq 2.0.69
core 2021.06.04
gsutil 4.62

~/inverting-proxy$ go version
go version go1.13.9 linux/amd64

[ravwojdyla]

This fixed the make deploy but the apps are not actually properly deployed, please see #93

[ojarjur]

Thanks for the report and debugging steps, @ravwojdyla

I'll take a look and see what we need to do to get the App Engine deployment working again with the latest changes to App Engine.

[ojarjur]

Thanks for the change.

When I tried a deployment with the new runtime I've found that there are a bunch of other things I had to fix, but this is a move in the right direction (and the old, deprecated runtime doesn't work anymore anyway), so I'm going to merge this as is and then apply my additional fixes on top of it.