sql/explain: ignore all 'unsafe' settings in test

Release note: none.
Epic: none.

Author: dt

pkg/sql/explain_bundle_test.go

@@ -1335,6 +1335,9 @@ func TestExplainBundleEnv(t *testing.T) {
 	require.NoError(t, c.PrintClusterSettings(&sb, true /* all */))
 	vars = strings.Split(sb.String(), "\n")
 	for _, line := range vars {
+		if strings.Contains(line, "unsafe") {
+			continue
+		}
 		_, err := sqlDB.ExecContext(ctx, line)
 		if err != nil {
 			t.Fatalf("unexpectedly couldn't execute %s: %v", line, err)