run hack scripts to update cyphar/filepath-securejoin to v0.2.4 correctly

vendor/github.com/cyphar/filepath-securejoin/.travis.yml

@@ -1,21 +0,0 @@
-# Copyright (C) 2017 SUSE LLC. All rights reserved.
-# Use of this source code is governed by a BSD-style
-# license that can be found in the LICENSE file.
-
-language: go
-go:
-    - 1.13.x
-    - 1.16.x
-    - tip
-arch:
-    - AMD64
-    - ppc64le
-os:
-    - linux
-    - osx
-
-script:
-    - go test -cover -v ./...
-
-notifications:
-    email: false

vendor/github.com/cyphar/filepath-securejoin/README.md

@@ -1,6 +1,6 @@
 ## `filepath-securejoin` ##
 
-[![Build Status](https://travis-ci.org/cyphar/filepath-securejoin.svg?branch=master)](https://travis-ci.org/cyphar/filepath-securejoin)
+[![Build Status](https://github.com/cyphar/filepath-securejoin/actions/workflows/ci.yml/badge.svg)](https://github.com/cyphar/filepath-securejoin/actions/workflows/ci.yml)
 
 An implementation of `SecureJoin`, a [candidate for inclusion in the Go
 standard library][go#20126]. The purpose of this function is to be a "secure"

vendor/github.com/cyphar/filepath-securejoin/VERSION

@@ -1 +1 @@
-0.2.3
+0.2.4

vendor/github.com/cyphar/filepath-securejoin/join.go

@@ -39,17 +39,27 @@ func IsNotExist(err error) bool {
 // components in the returned string are not modified (in other words are not
 // replaced with symlinks on the filesystem) after this function has returned.
 // Such a symlink race is necessarily out-of-scope of SecureJoin.
+//
+// Volume names in unsafePath are always discarded, regardless if they are
+// provided via direct input or when evaluating symlinks. Therefore:
+//
+// "C:\Temp" + "D:\path\to\file.txt" results in "C:\Temp\path\to\file.txt"
 func SecureJoinVFS(root, unsafePath string, vfs VFS) (string, error) {
 	// Use the os.* VFS implementation if none was specified.
 	if vfs == nil {
 		vfs = osVFS{}
 	}
 
+	unsafePath = filepath.FromSlash(unsafePath)
 	var path bytes.Buffer
 	n := 0
 	for unsafePath != "" {
 		if n > 255 {
-			return "", &os.PathError{Op: "SecureJoin", Path: root + "/" + unsafePath, Err: syscall.ELOOP}
+			return "", &os.PathError{Op: "SecureJoin", Path: root + string(filepath.Separator) + unsafePath, Err: syscall.ELOOP}
+		}
+
+		if v := filepath.VolumeName(unsafePath); v != "" {
+			unsafePath = unsafePath[len(v):]
 		}
 
 		// Next path component, p.