chore(gha): let dependabot know about the proxy #1064

Job	Run time
Evaluate modules to build	7s
Evaluate environments to deploy	4s
Frontend	0s
Metabase	0s
Backend / staticchecks	42s
Backend / build	48s
Backend / golangci	4m 21s
Backend / test-containers	17s
DVH Mock / Deploy to dev-gcp	15s
DVH Mock / Show parameters	1s
Backend / tests	3m 51s
Backend / Build and push docker image	1m 22s
Backend / Deploy to dev-gcp	1m 1s
Backend / Deploy to prod-gcp	59s
	13m 48s

Provide feedback