Update carbon cap do nothing intensity rates (#1160)

https://eaflood.atlassian.net/browse/RUBY-4087

Author: PaulDoyle-EA

config/carbon_impact_rates.json

@@ -44,56 +44,56 @@
     },
     {
       "Year": "2025/26",
-      "Cap Do Nothing Intensity": 3.17,
+      "Cap Do Nothing Intensity": 3.14,
       "Ops Do Nothing Intensity": 3.91,
       "Cap Target Reduction Rate": -27.00,
       "Ops Target Reduction Rate": -27.00
     },
     {
       "Year": "2026/27",
-      "Cap Do Nothing Intensity": 3.17,
+      "Cap Do Nothing Intensity": 3.14,
       "Ops Do Nothing Intensity": 3.91,
       "Cap Target Reduction Rate": -31.50,
       "Ops Target Reduction Rate": -31.50
     },
     {
       "Year": "2027/28",
-      "Cap Do Nothing Intensity": 3.17,
+      "Cap Do Nothing Intensity": 3.14,
       "Ops Do Nothing Intensity": 3.91,
       "Cap Target Reduction Rate": -36.00,
       "Ops Target Reduction Rate": -36.00
     },
     {
       "Year": "2028/29",
-      "Cap Do Nothing Intensity": 3.17,
+      "Cap Do Nothing Intensity": 3.14,
       "Ops Do Nothing Intensity": 3.91,
       "Cap Target Reduction Rate": -40.50,
       "Ops Target Reduction Rate": -40.50
     },
     {
       "Year": "2029/30",
-      "Cap Do Nothing Intensity": 3.17,
+      "Cap Do Nothing Intensity": 3.14,
       "Ops Do Nothing Intensity": 3.91,
       "Cap Target Reduction Rate": -45.00,
       "Ops Target Reduction Rate": -45.00
     },
     {
       "Year": "2030/31",
-      "Cap Do Nothing Intensity": 3.17,
+      "Cap Do Nothing Intensity": 3.14,
       "Ops Do Nothing Intensity": 3.91,
       "Cap Target Reduction Rate": -49.50,
       "Ops Target Reduction Rate": -49.50
     },
     {
       "Year": "2031/32",
-      "Cap Do Nothing Intensity": 3.17,
+      "Cap Do Nothing Intensity": 3.14,
       "Ops Do Nothing Intensity": 3.91,
       "Cap Target Reduction Rate": -54.00,
       "Ops Target Reduction Rate": -54.00
     },
     {
       "Year": "2032/33",
-      "Cap Do Nothing Intensity": 3.17,
+      "Cap Do Nothing Intensity": 3.14,
       "Ops Do Nothing Intensity": 3.91,
       "Cap Target Reduction Rate": -58.50,
       "Ops Target Reduction Rate": -58.50