CWE-22: Update filepath-securejoin

Fixes https://cwe.mitre.org/data/definitions/22.html

Signed-off-by: Georg Welzel <georg.welzel@freiheit.com>

go.mod

@@ -11,7 +11,7 @@ require (
 	github.com/Masterminds/vcs v1.13.3
 	github.com/asaskevich/govalidator v0.0.0-20200428143746-21a406dcc535
 	github.com/containerd/containerd v1.7.3
-	github.com/cyphar/filepath-securejoin v0.2.3
+	github.com/cyphar/filepath-securejoin v0.2.4
 	github.com/distribution/distribution/v3 v3.0.0-20221208165359-362910506bc2
 	github.com/evanphx/json-patch v5.6.0+incompatible
 	github.com/foxcpp/go-mockdns v1.0.0