Update scenario executive summary (#315)

Updating scenario source and scenario for executive summary
calculations. Aligned with what the team decided to use.

- [x] depends on
RMI-PACTA/pacta.executive.summary#325
- [x] depends on
RMI-PACTA/pacta.executive.summary#327

---------

Co-authored-by: Jackson Hoffart <jackson.hoffart@gmail.com>

web_tool_script_3.R

@@ -395,8 +395,8 @@ if (dir.exists(exec_summary_template_path) && (peer_group %in% c("assetmanager",
  portfolio_name = portfolio_name,
  peer_group = peer_group,
  start_year = start_year,
- scenario_source = "GECO2023",
- scenario_selected = "1.5C",
+ scenario_source = "WEO2023",
+ scenario_selected = "NZE_2050",
  scenario_geography = "Global",
  equity_market = "GlobalMarket",
  portfolio_allocation_method_equity = "portfolio_weight",
@@ -438,8 +438,8 @@ if (dir.exists(exec_summary_template_path) && (peer_group %in% c("assetmanager",
  portfolio_name = portfolio_name,
  peer_group = peer_group,
  total_portfolio = total_portfolio,
- scenario_source = "GECO2023",
- scenario_selected = "1.5C",
+ scenario_source = "WEO2023",
+ scenario_selected = "NZE_2050",
  currency_exchange_value = currency_exchange_value,
  log_dir = log_path
  )