Update dependencies and vendor (#1761)

vendor/github.com/labstack/echo/v4/group_fs_go1.16.go

@@ -0,0 +1,33 @@
+//go:build go1.16
+// +build go1.16
+
+package echo
+
+import (
+	"io/fs"
+	"net/http"
+)
+
+// Static implements `Echo#Static()` for sub-routes within the Group.
+func (g *Group) Static(pathPrefix, fsRoot string) {
+	subFs := MustSubFS(g.echo.Filesystem, fsRoot)
+	g.StaticFS(pathPrefix, subFs)
+}
+
+// StaticFS implements `Echo#StaticFS()` for sub-routes within the Group.
+//
+// When dealing with `embed.FS` use `fs := echo.MustSubFS(fs, "rootDirectory") to create sub fs which uses necessary
+// prefix for directory path. This is necessary as `//go:embed assets/images` embeds files with paths
+// including `assets/images` as their prefix.
+func (g *Group) StaticFS(pathPrefix string, filesystem fs.FS) {
+	g.Add(
+		http.MethodGet,
+		pathPrefix+"*",
+		StaticDirectoryHandler(filesystem, false),
+	)
+}
+
+// FileFS implements `Echo#FileFS()` for sub-routes within the Group.
+func (g *Group) FileFS(path, file string, filesystem fs.FS, m ...MiddlewareFunc) *Route {
+	return g.GET(path, StaticFileHandler(file, filesystem), m...)
+}