Update go.mod, go.sum and vendor

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

vendor/github.com/gdamore/tcell/terminfo/a/adm3a/term.go

@@ -0,0 +1,25 @@
+// Generated automatically.  DO NOT HAND-EDIT.
+
+package adm3a
+
+import "github.com/gdamore/tcell/terminfo"
+
+func init() {
+
+	// lsi adm3a
+	terminfo.AddTerminfo(&terminfo.Terminfo{
+		Name:        "adm3a",
+		Columns:     80,
+		Lines:       24,
+		Bell:        "\a",
+		Clear:       "\x1a$<1/>",
+		PadChar:     "\x00",
+		SetCursor:   "\x1b=%p1%' '%+%c%p2%' '%+%c",
+		CursorBack1: "\b",
+		CursorUp1:   "\v",
+		KeyUp:       "\v",
+		KeyDown:     "\n",
+		KeyRight:    "\f",
+		KeyLeft:     "\b",
+	})
+}