Update go.mod, go.sum and vendor

Running `go mod vendor` generates new additions and deletions.

vendor/github.com/gdamore/tcell/terminfo/v/vt52/term.go

@@ -0,0 +1,29 @@
+// Generated automatically.  DO NOT HAND-EDIT.
+
+package vt52
+
+import "github.com/gdamore/tcell/terminfo"
+
+func init() {
+
+	// dec vt52
+	terminfo.AddTerminfo(&terminfo.Terminfo{
+		Name:         "vt52",
+		Columns:      80,
+		Lines:        24,
+		Bell:         "\a",
+		Clear:        "\x1bH\x1bJ",
+		PadChar:      "\x00",
+		AltChars:     "+h.k0affggolpnqprrss",
+		EnterAcs:     "\x1bF",
+		ExitAcs:      "\x1bG",
+		SetCursor:    "\x1bY%p1%' '%+%c%p2%' '%+%c",
+		CursorBack1:  "\x1bD",
+		CursorUp1:    "\x1bA",
+		KeyUp:        "\x1bA",
+		KeyDown:      "\x1bB",
+		KeyRight:     "\x1bC",
+		KeyLeft:      "\x1bD",
+		KeyBackspace: "\b",
+	})
+}