fix: match new deps.dev naming

deps.dev recently changed their naming convention of go stdlib versions
Updating relating logic in license and packagedeprecation enrichers

PiperOrigin-RevId: 840479734

Author: Ly-Joey

enricher/license/license.go

@@ -163,8 +163,13 @@ func (e *Enricher) makeVersionRequest(ctx context.Context, queries []*depsdevpb.
 }
 
 func versionQuery(system depsdevpb.System, name string, version string) *depsdevpb.GetVersionRequest {
-	if system == depsdevpb.System_GO && name != "stdlib" {
-		version = "v" + version
+	// Matching deps.dev naming convention.
+	if system == depsdevpb.System_GO {
+		if name == "stdlib" {
+			version = "go" + version
+		} else {
+			version = "v" + version
+		}
 	}
 
 	return &depsdevpb.GetVersionRequest{

enricher/packagedeprecation/packagedeprecation.go

@@ -133,9 +133,13 @@ func makeVersionKey(pkg *extractor.Package) (VersionKey, bool) {
 	}
 	name, ver := pkg.Name, pkg.Version
 
-	// Add "v" prefix for Go versions (except stdlib) to match deps.dev format.
-	if pkg.PURLType == purl.TypeGolang && pkg.Name != "stdlib" {
-		ver = "v" + ver
+	// Matching deps.dev naming convention.
+	if pkg.PURLType == purl.TypeGolang {
+		if name == "stdlib" {
+			ver = "go" + ver
+		} else {
+			ver = "v" + ver
+		}
 	}
 
 	return VersionKey{