deletes tar.zst of components after unarchive (#1385)

Upon a successful unarchive, delete the `tar.zst` that is no longer
needed when using `zarf tools archiver decompress <package> <dest>
--decompress-all`.
...

Before behavior:
```
ocipkg/
├── components
│   ├── keyval
│   │   └── manifests
│   │       └── k3s
│   │           ├── hornstash-deploy.yaml
│   │           └── zarf-service.yaml
│   └── keyval.tar.zst
├── images.tar
├── sboms
│   ├── compare.html
│   ├── registry.gitlab.com_buzzdeploy_apps_horn-stash_main-amd64.json
│   └── sbom-viewer-registry.gitlab.com_buzzdeploy_apps_horn-stash_main-amd64.html
├── zarf-1135963779
└── zarf.yaml

```

After:
```
ocipkg/
├── components
│   └── keyval
│       └── manifests
│           └── k3s
│               ├── hornstash-deploy.yaml
│               └── zarf-service.yaml
├── images.tar
├── sboms
│   ├── compare.html
│   ├── registry.gitlab.com_buzzdeploy_apps_horn-stash_main-amd64.json
│   └── sbom-viewer-registry.gitlab.com_buzzdeploy_apps_horn-stash_main-amd64.html
├── zarf-1135963779
└── zarf.yaml
```

Fixes #

- [ ] Bug fix (non-breaking change which fixes an issue)
- [ ] New feature (non-breaking change which adds functionality)
- [ ] Other (security config, docs update, etc)

- [ ] Test, docs, adr added or updated as needed
- [ ] [Contributor Guide
Steps](https://github.com/defenseunicorns/zarf/blob/main/CONTRIBUTING.md#developer-workflow)
followed

src/cmd/tools/archiver.go

@@ -5,6 +5,10 @@
 package tools
 
 import (
+	"os"
+	"path/filepath"
+	"strings"
+
 	"github.com/defenseunicorns/zarf/src/config/lang"
 	"github.com/defenseunicorns/zarf/src/pkg/message"
 	"github.com/mholt/archiver/v3"
@@ -42,6 +46,27 @@ var archiverDecompressCmd = &cobra.Command{
 		if err != nil {
 			message.Fatal(err, lang.CmdToolsArchiverDecompressErr)
 		}
+
+		// Decompress component layers in the destination path
+		if decompressLayers {
+			layersDir := filepath.Join(destinationPath, "components")
+
+			files, err := os.ReadDir(layersDir)
+			if err != nil {
+				message.Fatalf(err, "failed to read the layers of components")
+			}
+			for _, file := range files {
+				if strings.HasSuffix(file.Name(), "tar.zst") {
+					if err := archiver.Unarchive(filepath.Join(layersDir, file.Name()), layersDir); err != nil {
+						message.Fatalf(err, "failed to decompress the component layer")
+					} else {
+						// Without unarchive error, delete original tar.zst in component folder
+						// This will leave the tar.zst if their is a failure for post mortem check
+						_ = os.Remove(filepath.Join(layersDir, file.Name()))
+					}
+				}
+			}
+		}
 	},
 }