Issue token from OAuth server and pass it along with HTTP requests

cmd/task/main.go

go.mod

go.sum

internal/config/config.go

vendor/golang.org/x/net/LICENSE

vendor/golang.org/x/net/PATENTS

vendor/golang.org/x/net/context/context.go

vendor/golang.org/x/net/context/ctxhttp/ctxhttp.go

vendor/golang.org/x/net/context/go17.go

vendor/golang.org/x/net/context/go19.go

vendor/golang.org/x/net/context/pre_go17.go

vendor/golang.org/x/net/context/pre_go19.go

vendor/golang.org/x/oauth2/.travis.yml

vendor/golang.org/x/oauth2/AUTHORS

vendor/golang.org/x/oauth2/CONTRIBUTING.md

vendor/golang.org/x/oauth2/CONTRIBUTORS

vendor/golang.org/x/oauth2/LICENSE

vendor/golang.org/x/oauth2/README.md

...olang.org/x/oauth2/clientcredentials/clientcredentials.go

vendor/golang.org/x/oauth2/internal/client_appengine.go