fix: Remove continue-on-error

Author: dbadura

.github/workflows/busola-build.yml

@@ -52,7 +52,6 @@ jobs:
   build-fips-busola-image:
     uses: kyma-project/test-infra/.github/workflows/image-builder.yml@main # Usage: kyma-project/test-infra/.github/workflows/image-builder.yml@main
     if: github.event.pull_request.draft == false
-    continue-on-error: true
     with:
       name: fips-busola
       dockerfile: fips.Dockerfile