ci: define manual build steps for codeql

[SondreJDigdir]

Description

Autobuild seems to be a bit flaky, ref https://github.com/data-altinn-no/core/pull/108, adding manual build step instead

Documentation

• [ ] Doc updated

[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