Revert "drop use of NRSAFESTR when accessing ..."

This partially reverts commit 3a356ea.
`NRSAFESTR` should still be used when accessing package_name and package_version
for debug log message.

Author: lavarou

agent/lib_composer.c

@@ -146,7 +146,8 @@ static void nr_execute_handle_autoload_composer_get_packages_information(
       }
       if (nr_php_is_zval_non_empty_string(package_version)) {
         nrl_verbosedebug(NRL_INSTRUMENT, "package %s, version %s",
-                         ZSTR_VAL(package_name), Z_STRVAL_P(package_version));
+                         NRSAFESTR(ZSTR_VAL(package_name)),
+                         NRSAFESTR(Z_STRVAL_P(package_version)));
         nr_txn_add_php_package_from_source(NRPRG(txn), ZSTR_VAL(package_name),
                                            Z_STRVAL_P(package_version),
                                            NR_PHP_PACKAGE_SOURCE_COMPOSER);