Update c/image to v4.0.1 and buildah to 1.11.3

This requires updating all import paths throughout, and a matching
buildah update to interoperate.

I can't figure out the reason for go.mod tracking
	github.com/containers/image v3.0.2+incompatible // indirect
((go mod graph) lists it as a direct dependency of libpod, but
(go list -json -m all) lists it as an indirect dependency),
but at least looking at the vendor subdirectory, it doesn't seem
to be actually used in the built binaries.

Signed-off-by: Miloslav Trmač <mitr@redhat.com>

vendor/github.com/mattn/go-shellwords/shellwords.go

@@ -40,6 +40,7 @@ type Parser struct {
 	ParseEnv      bool
 	ParseBacktick bool
 	Position      int
+	Dir           string
 
 	// If ParseEnv is true, use this for getenv.
 	// If nil, use os.Getenv.
@@ -51,6 +52,7 @@ func NewParser() *Parser {
 		ParseEnv:      ParseEnv,
 		ParseBacktick: ParseBacktick,
 		Position:      0,
+		Dir:           "",
 	}
 }
 
@@ -100,11 +102,11 @@ loop:
 			if !singleQuoted && !doubleQuoted && !dollarQuote {
 				if p.ParseBacktick {
 					if backQuote {
-						out, err := shellRun(backtick)
+						out, err := shellRun(backtick, p.Dir)
 						if err != nil {
 							return nil, err
 						}
-						buf = out
+						buf = buf[:len(buf)-len(backtick)] + out
 					}
 					backtick = ""
 					backQuote = !backQuote
@@ -117,15 +119,11 @@ loop:
 			if !singleQuoted && !doubleQuoted && !backQuote {
 				if p.ParseBacktick {
 					if dollarQuote {
-						out, err := shellRun(backtick)
+						out, err := shellRun(backtick, p.Dir)
 						if err != nil {
 							return nil, err
 						}
-						if r == ')' {
-							buf = buf[:len(buf)-len(backtick)-2] + out
-						} else {
-							buf = buf[:len(buf)-len(backtick)-1] + out
-						}
+						buf = buf[:len(buf)-len(backtick)-2] + out
 					}
 					backtick = ""
 					dollarQuote = !dollarQuote
@@ -155,7 +153,7 @@ loop:
 				continue
 			}
 		case ';', '&', '|', '<', '>':
-			if !(escaped || singleQuoted || doubleQuoted || backQuote) {
+			if !(escaped || singleQuoted || doubleQuoted || backQuote || dollarQuote) {
 				if r == '>' && len(buf) > 0 {
 					if c := buf[0]; '0' <= c && c <= '9' {
 						i -= 1