pass global context through cobra

cmd/restic/cmd_dump.go

@@ -34,7 +34,7 @@ Exit status is 0 if the command was successful, and non-zero if there was any er
 `,
 	DisableAutoGenTag: true,
 	RunE: func(cmd *cobra.Command, args []string) error {
-		return runDump(globalCtx(), dumpOptions, globalOptions, args)
+		return runDump(cmd.Context(), dumpOptions, globalOptions, args)
 	},
 }