chore: add "postchangelog" to cspell configuration

KristjanESPERANTO · KristjanESPERANTO · commit 77b53a5924e5 · 2026-01-06T17:08:54.000+01:00
diff --git a/cspell.config.json b/cspell.config.json
@@ -60,6 +60,7 @@
     "openmeteo",
     "passwordless",
     "plusplus",
+    "postchangelog",
     "poweroff",
     "qrcode",
     "randr",
