Implement webhook branch filter (#7791)

* Fix validate() function to handle errors in embedded anon structs

* Implement webhook branch filter

See #2025, #3998.

vendor/github.com/gobwas/glob/match/super.go

@@ -0,0 +1,33 @@
+package match
+
+import (
+	"fmt"
+)
+
+type Super struct{}
+
+func NewSuper() Super {
+	return Super{}
+}
+
+func (self Super) Match(s string) bool {
+	return true
+}
+
+func (self Super) Len() int {
+	return lenNo
+}
+
+func (self Super) Index(s string) (int, []int) {
+	segments := acquireSegments(len(s) + 1)
+	for i := range s {
+		segments = append(segments, i)
+	}
+	segments = append(segments, len(s))
+
+	return 0, segments
+}
+
+func (self Super) String() string {
+	return fmt.Sprintf("<super>")
+}