chore(ort-scan): Explicitly set preferFileLicense

The change has no effect but makes the setting more obvious. See also
[1].

[1]: oss-review-toolkit/ort@4af6360

Signed-off-by: Frank Viernau <[email protected]>

Author: fviernau

templates/ort-scan.yml

@@ -202,6 +202,7 @@
               options:
                 commandLine: "--copyright --license --info --strip-root --timeout 300"
                 parseLicenseExpressions: "true"
+                preferFileLicense: false
                 minVersion: "31.0.0"
                 maxVersion: "33.0.0"
           storages: