internal: apply gofumpt formatting to container.go

Fixes verify/lint CI (gofumpt formatter).

Signed-off-by: nishantxscooby <officialnishant21@gmail.com>
Made-with: Cursor

Author: nishantxscooby

internal/container.go

@@ -275,6 +275,7 @@ type archiveSizes struct {
 	pagesSize         int64
 	amdgpuPagesSize   int64
 }
+
 // getArchiveSizes calculates the sizes of different components within a container checkpoint.
 func getArchiveSizes(archiveInput string) (*archiveSizes, error) {
 	result := &archiveSizes{}
@@ -413,9 +414,9 @@ func getPsEnvVars(checkpointOutputDir string, pid uint32) (envVars []string, err
 
 	for _, envVar := range strings.Split(buffer.String(), "\x00") {
 		if envVar != "" {
-		envVars = append(envVars, envVar)
+			envVars = append(envVars, envVar)
 		}
 	}
 
 	return
-}
+}