[FIX] Minor fix for build verification (- WIP PR #448 -)

Changes in file .github/actions/checkout-and-rebuild/action.yml:
 * use input token for verifing attestation too

Changes in file tests/test_hear_cleanup.py:
 * skip early if send fails in flaky test

Author: reactive-firewall

.github/actions/checkout-and-rebuild/action.yml

@@ -129,6 +129,8 @@ runs:
     - id: verify_artifact_source
       name: "Verify Build Files"
       shell: bash
+      env:
+        GH_TOKEN: ${{ inputs.token }}
       run: |
         gh attestation verify --owner reactive-firewall-org "${{ steps.fetch_artifact_files.outputs.download-path }}"
     - name: "Enumerate Fetched Files"

tests/test_hear_cleanup.py

@@ -147,6 +147,8 @@ def test_cleanup_on_exit(self) -> None:
 						group=self.TEST_MULTICAST_GROUP, port=_fixture_port_num,
 						ttl=1, data="STOP Test",
 					)
+					if not didSend:  # pragma: no branch
+						raise unittest.SkipTest("Can't test without transmitting") from None
 					p.join(self.STOP_DELAY_SECONDS)
 					p_tick += 1
 				self.assertFalse(p.is_alive())