Fix read file error in extract_apks

Bug: 301409551
Test: build
Change-Id: I353efea233e524c838298447b08743eeeedbb263

cmd/extract_apks/main.go

@@ -76,8 +76,8 @@ func (apkSet *ApkSet) getToc() (Toc, error) {
 	if err != nil {
 		return nil, err
 	}
-	bytes := make([]byte, tocFile.FileHeader.UncompressedSize64)
-	if _, err := rc.Read(bytes); err != nil && err != io.EOF {
+	bytes, err := io.ReadAll(rc)
+	if err != nil {
 		return nil, err
 	}
 	rc.Close()