fix: missing VA check for the 1st matching event

[mmta]

This is true when the 2nd and subsequent rules never refer to the same IP/port combination in the first rule.

[codecov]

Codecov Report

Merging #186 into master will decrease coverage by 0.09%.
The diff coverage is 100%.

@@            Coverage Diff            @@
##           master     #186     +/-   ##
=========================================
- Coverage   96.14%   96.04%   -0.1%     
=========================================
  Files          39       42      +3     
  Lines        2775     2832     +57     
  Branches        0        5      +5     
=========================================
+ Hits         2668     2720     +52     
  Misses         74       74             
- Partials       33       38      +5

Impacted Files	Coverage Δ
internal/pkg/dsiem/siem/backlog.go	91.14% <100%> (-0.06%)	⬇️
internal/pkg/dsiem/alarm/helper.go	100% <100%> (ø)	⬆️
web/ui/src/polyfills.ts	100% <0%> (ø)
web/ui/src/test.ts	100% <0%> (ø)
web/ui/src/app/app.component.ts	80% <0%> (ø)

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[defenbot]

🎉 This PR is included in version 0.25.1 🎉

The release is available on GitHub release

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