fix(tests): skip functional/email_opt_in test if fxaProduction=true
fix(tests): skip functional/email_opt_in test if fxaProduction=true

riadhchtara/fxa-content-server,atiqueahmedziad/fxa-content-server,npestana/fxa-content-server,riadhchtara/fxa-content-server,swatilk/fxa-content-server,atiqueahmedziad/fxa-content-server,atiqueahmedziad/fxa-content-server,mozilla/fxa-content-server,ofer43211/fxa-content-server,vladikoff/fxa-content-server,dannycoates/fxa-content-server,mozilla/fxa-content-server,TDA/fxa-content-server,vladikoff/fxa-content-server,riadhchtara/fxa-password-manager,ofer43211/fxa-content-server,riadhchtara/fxa-password-manager,mozilla/fxa-content-server,ReachingOut/fxa-content-server,TDA/fxa-content-server,ReachingOut/fxa-content-server,shane-tomlinson/fxa-content-server,npestana/fxa-content-server,TDA/fxa-two-factor-auth,shane-tomlinson/fxa-content-server,ReachingOut/fxa-content-server,riadhchtara/fxa-content-server,TDA/fxa-two-factor-auth,shane-tomlinson/fxa-content-server,vladikoff/fxa-content-server,npestana/fxa-content-server,TDA/fxa-content-server,ofer43211/fxa-content-server,swatilk/fxa-content-server,riadhchtara/fxa-password-manager,dannycoates/fxa-content-server,swatilk/fxa-content-server,dannycoates/fxa-content-server,TDA/fxa-two-factor-auth