licence(#7): PMPL-1.0 -> PMPL-1.0-or-later (owner carve-out, SPDX-only) (#63)

2 files, SPDX-value-only suffix fix. NOT a relicence (same licence).
Owner-sanctioned carve-out, standards LICENCE-POLICY A8(1). Refs
LICENCE-DEBT-LEDGER-2026-05-18. 🤖 Generated with [Claude
Code](https://claude.com/claude-code)

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: hyperpolymath

.github/workflows/mirror.yml

@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: PMPL-1.0
+# SPDX-License-Identifier: PMPL-1.0-or-later
 # SPDX-FileCopyrightText: 2025 Jonathan D.A. Jewell
 name: Mirror to Git Forges
 

.github/workflows/scorecard.yml

@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: PMPL-1.0
+# SPDX-License-Identifier: PMPL-1.0-or-later
 name: OSSF Scorecard
 on:
   push: