fix(summary): Fixes code typo where summary test fails on monday (#698)

- [ ] New feature
- [x] Bug fix
- [ ] High impact

**Description of work:**

Due to a code typo a summary test started to fail on Mondays.

**Testing:**
- [x] Can be tested
- [x] Automatic tests created / updated
- [x] Local tests are passing



**Checklist:**
- [x] Considered automated tests
- [x] Considered updating specification / documentation
- [x] Considered work items 
- [x] Considered security
- [x] Performed developer testing
- [x] Checklist finalized / ready for review

src/tests/Fusion.Summary.Api.Tests/IntegrationTests/SummaryReportTests.cs

@@ -76,7 +76,7 @@ public async Task PutWeeklySummaryReport_WithInvalidPeriodDate_ShouldReturnBadRe
         {
             var nowDate = DateTime.UtcNow;
             if (nowDate.DayOfWeek == DayOfWeek.Monday)
-                report.Period = nowDate.AddDays(1);
+                nowDate = nowDate.AddDays(1);
             report.Period = nowDate;
         });