vendor: bump to buildah ca578b290144 and use new cache API

Bump to buildah ca578b290144 and use new `cacheTo` and `cacheFrom` API.

[NO NEW TESTS NEEDED]
[NO TESTS NEEDED]

Signed-off-by: Aditya R <arajan@redhat.com>

vendor/github.com/containers/buildah/chroot/run_common.go

@@ -8,7 +8,6 @@ import (
 	"encoding/json"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"os"
 	"os/exec"
 	"os/signal"
@@ -690,7 +689,7 @@ func runUsingChrootExecMain() {
 			os.Exit(1)
 		}
 	} else {
-		setgroups, _ := ioutil.ReadFile("/proc/self/setgroups")
+		setgroups, _ := os.ReadFile("/proc/self/setgroups")
 		if strings.Trim(string(setgroups), "\n") != "deny" {
 			logrus.Debugf("clearing supplemental groups")
 			if err = syscall.Setgroups([]int{}); err != nil {

vendor/github.com/containers/buildah/chroot/seccomp.go

@@ -5,7 +5,7 @@ package chroot
 
 import (
 	"fmt"
-	"io/ioutil"
+	"os"
 
 	"github.com/containers/common/pkg/seccomp"
 	specs "github.com/opencontainers/runtime-spec/specs-go"
@@ -187,7 +187,7 @@ func setupSeccomp(spec *specs.Spec, seccompProfilePath string) error {
 		}
 		spec.Linux.Seccomp = seccompConfig
 	default:
-		seccompProfile, err := ioutil.ReadFile(seccompProfilePath)
+		seccompProfile, err := os.ReadFile(seccompProfilePath)
 		if err != nil {
 			return fmt.Errorf("opening seccomp profile failed: %w", err)
 		}