chore: fold schema 16.1.13 back into 16.1.12

16.1.12 was never released, and 16.1.13 differed from it only in field descriptions, which per
`schema/json/README.md` don't get a version of their own.

- drop `schema-16.1.13.json` and set `JSONSchemaVersion` back to `16.1.12`
- regenerate `schema-16.1.12.json` and `schema-latest.json` so the `fullPath` descriptions are current
- the 16.1.12 changelog line now describes `fullPath` instead of the old `archivePath`

Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com>

schema/json/schema-latest.json

@@ -1,6 +1,6 @@
 {
   "$schema": "https://json-schema.org/draft/2020-12/schema",
-  "$id": "anchore.io/schema/syft/json/16.1.13/document",
+  "$id": "anchore.io/schema/syft/json/16.1.12/document",
   "$ref": "#/$defs/Document",
   "$defs": {
     "AlpmDbEntry": {