refactor(scanoss): Set SCANOSS matcher property to null

It forces the SCANOSS scanner's matcher property to null to prevent loading
results from scan storage. This follows the same approach implemented for
other snippet scanners, where the consensus was that snippet scanner
results should never come from scan storage.

This fixes an issue where `context.excludes` was being nullified in
`ScanOss.scanPath()`, preventing proper application of exclusion
patterns.

Signed-off-by: Agustin Isasmendi <[email protected]>

Author: isasmendiagus

plugins/scanners/scanoss/src/main/kotlin/ScanOss.kt

@@ -32,7 +32,6 @@ import org.ossreviewtoolkit.plugins.api.PluginDescriptor
 import org.ossreviewtoolkit.scanner.PathScannerWrapper
 import org.ossreviewtoolkit.scanner.ScanContext
 import org.ossreviewtoolkit.scanner.ScannerMatcher
-import org.ossreviewtoolkit.scanner.ScannerMatcherConfig
 import org.ossreviewtoolkit.scanner.ScannerWrapperFactory
 
 @OrtPlugin(
@@ -57,17 +56,7 @@ class ScanOss(
 
     override val configuration = ""
 
-    override val matcher by lazy {
-        ScannerMatcher.create(
-            details,
-            ScannerMatcherConfig(
-                config.regScannerName,
-                config.minVersion,
-                config.maxVersion,
-                configuration
-            )
-        )
-    }
+    override val matcher: ScannerMatcher? = null
 
     override val readFromStorage = config.readFromStorage