bug(ios): release notes on app store appear to be off-by-one

**Describe the bug**

Looking at release notes for 14.0.278 and 14.0.279, it looks like they are actually from 14.0.277 and 14.0.278 respectively. For example, on the app store, 14.0.278 shows:

```
14.0.278 Jul 20, 2021
Published on 2021-06-29.

* chore(common): bash version for run-required-test-builds.sh (#5268)

* chore(common): Add YouTube links to Keyman 14 features (#5285)

* fix(common/models): predictive-text engine use of NFD input (#5286)

* feat(common/core/web): engine correction-prep optimizations (#5352)

* change(ios): setText now uses JSON serialization (#5333)

* Minor fixes and performance improvements
```

This correlates to HISTORY.md (iOS-filtered):

https://github.com/keymanapp/keyman/blob/0fa34284c794399401c37812bcfd374588d68cb0/HISTORY.md#L3-L22

**Screenshots**


From: https://apps.apple.com/us/app/keyman/id933676545

---

**Keyman for iPhone/iPad/Android:**
- Keyman version: 14.0 series at least