bump containers/image to v5.0.0, buildah to v1.11.4

Move to containers/image v5 and containers/buildah to v1.11.4.

Replace an equality check with a type assertion when checking for a
docker.ErrUnauthorizedForCredentials in `podman login`.

Signed-off-by: Nalin Dahyabhai <nalin@redhat.com>

vendor/github.com/containers/image/v5/internal/tmpdir/tmpdir.go

@@ -0,0 +1,29 @@
+package tmpdir
+
+import (
+	"os"
+	"runtime"
+)
+
+// unixTempDirForBigFiles is the directory path to store big files on non Windows systems.
+// You can override this at build time with
+// -ldflags '-X github.com/containers/image/internal/tmpdir.unixTempDirForBigFiles=$your_path'
+var unixTempDirForBigFiles = builtinUnixTempDirForBigFiles
+
+// builtinUnixTempDirForBigFiles is the directory path to store big files.
+// Do not use the system default of os.TempDir(), usually /tmp, because with systemd it could be a tmpfs.
+// DO NOT change this, instead see unixTempDirForBigFiles above.
+const builtinUnixTempDirForBigFiles = "/var/tmp"
+
+// TemporaryDirectoryForBigFiles returns a directory for temporary (big) files.
+// On non Windows systems it avoids the use of os.TempDir(), because the default temporary directory usually falls under /tmp
+// which on systemd based systems could be the unsuitable tmpfs filesystem.
+func TemporaryDirectoryForBigFiles() string {
+	var temporaryDirectoryForBigFiles string
+	if runtime.GOOS == "windows" {
+		temporaryDirectoryForBigFiles = os.TempDir()
+	} else {
+		temporaryDirectoryForBigFiles = unixTempDirForBigFiles
+	}
+	return temporaryDirectoryForBigFiles
+}