Fix influx counter for whitesource

[tlefaix]

Changes

In case of several projects scanned (like with mta), collectVulnsAndLibsForProject (and therefore checkProjectSecurityViolations) will be called several times (see : https://github.com/SAP/jenkins-library/blob/master/cmd/whitesourceExecuteScan.go#L657)

Current issue is that in this case, the influx metrics will only contains the results for the latest scanned project.

Change is to accumulate values from each projects instead of replacing the values.

I also amended the existing tests to validate that influx metrics contains the correct value at the end.

• [x] Tests
• [ ] Documentation

[cla-assistant[bot]]

All committers have signed the CLA.

[sonarcloud[bot]]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud

[sonarcloud[bot]]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud