Record missing stats (#2407)

## Description:

Some stats are missing from the recorded game stats:
- Unit upgrade
- Gold from trade and from steal

The gold from trade/steal was introduced with [PR
784](https://github.com/openfrontio/OpenFrontIO/pull/784) but was
quickly reverted with [PR
927](https://github.com/openfrontio/OpenFrontIO/pull/927), probably
involuntarily.

## Please complete the following:

- [x] I have added screenshots for all UI updates
- [x] I process any text displayed to the user through translateText()
and I've added it to the en.json file
- [x] I have added relevant tests to the test directory
- [x] I confirm I have thoroughly tested these changes and take full
responsibility for any bugs introduced

## Please put your Discord username so you can be contacted if a bug or
regression is found:

IngloriousTom

tests/core/executions/TradeShipExecution.test.ts

@@ -29,6 +29,7 @@ describe("TradeShipExecution", () => {
       units: jest.fn(() => [dstPort]),
       unitCount: jest.fn(() => 1),
       id: jest.fn(() => 1),
+      clientID: jest.fn(() => 1),
       canTrade: jest.fn(() => true),
     } as any;
 
@@ -38,6 +39,7 @@ describe("TradeShipExecution", () => {
       displayName: jest.fn(() => "Destination"),
       units: jest.fn(() => [dstPort]),
       unitCount: jest.fn(() => 1),
+      clientID: jest.fn(() => 2),
       canTrade: jest.fn(() => true),
     } as any;