Update main.yml

fix initial sbom deployment

Author: sebtiem

.github/workflows/main.yml

@@ -37,7 +37,7 @@ jobs:
         uses: DependencyTrack/gh-upload-sbom@v3
         with:
           serverHostname: 'api.dependencytrack.open-elements.cloud'
-          apiKey: ${{ secrets.DEPENDENCYTRACK_APIKEY }}
+          apiKey: ${{ secrets.DEPENDENCYTRACK_API_KEY }}
           projectName: 'hiero-enterprise-java'
           projectVersion: 'main'
           bomFilename: "target/bom.xml"