vendor: update everything

* If possible, update each dependency to the latest available version.

* Use releases over commit IDs and avoid vendoring branches.

Signed-off-by: Valentin Rothberg <rothberg@redhat.com>

vendor/github.com/xeipuuv/gojsonschema/schemaReferencePool.go

@@ -62,6 +62,7 @@ func (p *schemaReferencePool) Add(ref string, sch *subSchema) {
 	if internalLogEnabled {
 		internalLog(fmt.Sprintf("Add Schema Reference %s to pool", ref))
 	}
-
-	p.documents[ref] = sch
+	if _, ok := p.documents[ref]; !ok {
+		p.documents[ref] = sch
+	}
 }