[chore]: Bump mvdan.cc/xurls/v2 from 2.5.0 to 2.6.0 (#3643)

Bumps [mvdan.cc/xurls/v2](https://github.com/mvdan/xurls) from 2.5.0 to 2.6.0.
- [Release notes](https://github.com/mvdan/xurls/releases)
- [Commits](https://github.com/mvdan/xurls/compare/v2.5.0...v2.6.0)

---
updated-dependencies:
- dependency-name: mvdan.cc/xurls/v2
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

vendor/golang.org/x/tools/internal/pkgbits/sync.go

@@ -6,6 +6,7 @@ package pkgbits
 
 import (
 	"fmt"
+	"runtime"
 	"strings"
 )
 
@@ -23,6 +24,24 @@ func fmtFrames(pcs ...uintptr) []string {
 
 type frameVisitor func(file string, line int, name string, offset uintptr)
 
+// walkFrames calls visit for each call frame represented by pcs.
+//
+// pcs should be a slice of PCs, as returned by runtime.Callers.
+func walkFrames(pcs []uintptr, visit frameVisitor) {
+	if len(pcs) == 0 {
+		return
+	}
+
+	frames := runtime.CallersFrames(pcs)
+	for {
+		frame, more := frames.Next()
+		visit(frame.File, frame.Line, frame.Function, frame.PC-frame.Entry)
+		if !more {
+			return
+		}
+	}
+}
+
 // SyncMarker is an enum type that represents markers that may be
 // written to export data to ensure the reader and writer stay
 // synchronized.
@@ -110,4 +129,8 @@ const (
 	SyncStmtsEnd
 	SyncLabel
 	SyncOptLabel
+
+	SyncMultiExpr
+	SyncRType
+	SyncConvRTTI
 )