Fix trap causing test_fail when skipping delegate tests

Disable EXIT trap before calling test_pass and exiting when FDO 2.0
is not supported. The trap on_failure was being called on exit 0,
incorrectly reporting the test as failed after it was marked as passed.

Fixes spurious test failures in CI when delegate tests are skipped.

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

Author: runcom

test/ci/test-delegate-invalid-chain.sh

@@ -23,6 +23,7 @@ run_test() {
   log_info "Checking if client supports FDO 2.0"
   if ! "${bin_dir}/go-fdo-client" onboard --help 2>&1 | grep -q "fdo-version"; then
     log_warn "Client does not support --fdo-version flag, skipping FDO 2.0 delegate test"
+    trap - EXIT
     test_pass
     exit 0
   fi

test/ci/test-delegate-onboarding.sh

@@ -55,6 +55,7 @@ run_test() {
   log_info "Checking if client supports FDO 2.0"
   if ! "${bin_dir}/go-fdo-client" onboard --help 2>&1 | grep -q "fdo-version"; then
     log_warn "Client does not support --fdo-version flag, skipping FDO 2.0 delegate test"
+    trap - EXIT
     test_pass
     exit 0
   fi

test/ci/test-delegate-permissions.sh

@@ -19,6 +19,7 @@ run_test() {
   log_info "Checking if client supports FDO 2.0"
   if ! "${bin_dir}/go-fdo-client" onboard --help 2>&1 | grep -q "fdo-version"; then
     log_warn "Client does not support --fdo-version flag, skipping FDO 2.0 delegate test"
+    trap - EXIT
     test_pass
     exit 0
   fi