Upgraded experimental to 9.12.3

Author: webdevred

.github/scripts/add_experimental_flags.sh

@@ -25,7 +25,7 @@ if [[ ${#EXP_FLAGS[@]} -eq 0 ]]; then
 else
   # TODO: temporary update to newer ghc, remove this once we upgrade the whole project to a newer GHC
   EXP_FLAGS_STRING=$(printf '+%s ' "${EXP_FLAGS[@]}")
-  EXPERIMENTAL=$(jq --arg ghc "9.10.3" --arg flags "$EXP_FLAGS_STRING" --arg label "experimental" \
+  EXPERIMENTAL=$(jq --arg ghc "9.12.3" --arg flags "$EXP_FLAGS_STRING" --arg label "experimental" \
     '.include[0] += {ghc: $ghc, flags: $flags, label: $label}' <<<"$MATRIX_JSON")
 
   UPDATED=$(jq --argjson exp_include "$(jq '.include' <<<"$EXPERIMENTAL")" \