Update vendor or containers/buildah

Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>

vendor/github.com/containers/storage/pkg/chunked/cache_linux.go

@@ -6,7 +6,6 @@ import (
 	"errors"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"os"
 	"sort"
 	"strconv"
@@ -128,7 +127,7 @@ func (c *layersCache) load() error {
 		}
 		defer manifestReader.Close()
 
-		manifest, err := ioutil.ReadAll(manifestReader)
+		manifest, err := io.ReadAll(manifestReader)
 		if err != nil {
 			return fmt.Errorf("open manifest file for layer %q: %w", r.ID, err)
 		}
@@ -334,7 +333,7 @@ func writeCache(manifest []byte, id string, dest setBigData) (*metadata, error)
 	}()
 	defer pipeReader.Close()
 
-	counter := ioutils.NewWriteCounter(ioutil.Discard)
+	counter := ioutils.NewWriteCounter(io.Discard)
 
 	r := io.TeeReader(pipeReader, counter)
 

vendor/github.com/containers/storage/pkg/chunked/compressor/compressor.go

@@ -8,7 +8,6 @@ import (
 	"bufio"
 	"encoding/base64"
 	"io"
-	"io/ioutil"
 
 	"github.com/containers/storage/pkg/chunked/internal"
 	"github.com/containers/storage/pkg/ioutils"
@@ -21,9 +20,7 @@ const holesThreshold = int64(1 << 10)
 
 type holesFinder struct {
 	reader    *bufio.Reader
-	fileOff   int64
 	zeros     int64
-	from      int64
 	threshold int64
 
 	state int
@@ -432,7 +429,7 @@ func zstdChunkedWriterWithLevel(out io.Writer, metadata map[string]string, level
 
 	go func() {
 		ch <- writeZstdChunkedStream(out, metadata, r, level)
-		io.Copy(ioutil.Discard, r)
+		io.Copy(io.Discard, r)
 		r.Close()
 		close(ch)
 	}()

vendor/github.com/containers/storage/pkg/chunked/storage.go

@@ -1,7 +1,6 @@
 package chunked
 
 import (
-	"fmt"
 	"io"
 )
 
@@ -22,5 +21,5 @@ type ErrBadRequest struct {
 }
 
 func (e ErrBadRequest) Error() string {
-	return fmt.Sprintf("bad request")
+	return "bad request"
 }

vendor/github.com/containers/storage/pkg/chunked/storage_linux.go

@@ -8,7 +8,6 @@ import (
 	"fmt"
 	"hash"
 	"io"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 	"reflect"
@@ -657,7 +656,7 @@ func (c *chunkedDiffer) prepareCompressedStreamToFile(partCompression compressed
 		// Only the missing chunk in the requested part refers to a hole.
 		// The received data must be discarded.
 		limitReader := io.LimitReader(from, mf.CompressedSize)
-		_, err := io.CopyBuffer(ioutil.Discard, limitReader, c.copyBuffer)
+		_, err := io.CopyBuffer(io.Discard, limitReader, c.copyBuffer)
 		return fileTypeHole, err
 	case partCompression == fileTypeZstdChunked:
 		c.rawReader = io.LimitReader(from, mf.CompressedSize)
@@ -856,7 +855,7 @@ func (c *chunkedDiffer) storeMissingFiles(streams chan io.ReadCloser, errs chan
 		for _, mf := range missingPart.Chunks {
 			if mf.Gap > 0 {
 				limitReader := io.LimitReader(part, mf.Gap)
-				_, err := io.CopyBuffer(ioutil.Discard, limitReader, c.copyBuffer)
+				_, err := io.CopyBuffer(io.Discard, limitReader, c.copyBuffer)
 				if err != nil {
 					Err = err
 					goto exit
@@ -906,7 +905,7 @@ func (c *chunkedDiffer) storeMissingFiles(streams chan io.ReadCloser, errs chan
 				goto exit
 			}
 			if c.rawReader != nil {
-				if _, err := io.CopyBuffer(ioutil.Discard, c.rawReader, c.copyBuffer); err != nil {
+				if _, err := io.CopyBuffer(io.Discard, c.rawReader, c.copyBuffer); err != nil {
 					Err = err
 					goto exit
 				}