Declared license curations not being applied

[bennati]

Declared license curations are correectly parsed into the resolved_configuration section of analyzer report, but the declared license is still represented as the original value and a rule violation is shown in the report (both webapp and html).

To reproduce:

1. Configure ORT to use the curation from curations.yml.txt
2. Configure ORT to use the rule below:

fun RuleSet.unmappedDeclaredLicenseRule() = packageRule("UNMAPPED_DECLARED_LICENSE") {
    pkg.metadata.declaredLicensesProcessed.unmapped.forEach { unmappedLicense ->
        error(
            "The declared license '$unmappedLicense' could not be mapped to a valid license or parsed as an SPDX " +
                    "expression. The license was found in package ${pkg.metadata.id.toCoordinates()}.",
            ""
        )
    }
}

3. Scan the file requirements.txt
4. Check in the analyzer-result.json that the curation is present in the resolved_configuration section
5. Check that the rule UNMAPPED_DECLARED_LICENSE is triggered in the scan report.