Bump agent to e509c90
Bump agent to e509c90

- Fix metrics format for internal agent metrics.

appsignal/appsignal,appsignal/appsignal,appsignal/appsignal-ruby,matrinox/appsignal-ruby,matrinox/appsignal-ruby,appsignal/appsignal-ruby,appsignal/appsignal-ruby,matrinox/appsignal-ruby,appsignal/appsignal-ruby