Update S6678: Add VB.NET RSPEC

[zsolt-kolbay-sonarsource]

Review

A dedicated reviewer checked the rule description successfully for:

• [ ] logical errors and incorrect information
• [ ] information gaps and missing content
• [ ] text style and tone
• [ ] PR summary and labels follow the guidelines

[sonarqube-next[bot]]

Quality Gate passed for 'rspec-frontend'

Issues
0 New issues
0 Fixed issues
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
No data about Duplication

See analysis details on SonarQube

[sonarqube-next[bot]]

Quality Gate passed for 'rspec-tools'

Issues
0 New issues
0 Fixed issues
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
No data about Duplication

See analysis details on SonarQube