chore(release): fix changeset attribution for 0.13.1 (#1111)

#1110 reintroduced these changesets, so changelog-github credited both to #1110/@ascorbic, dropping @jcheese1's credit for #1100. Add per-changeset pr/commit/author overrides (read by @changesets/changelog-github) so the regenerated release PR attributes #1100 to @jcheese1 and #1101 to @ascorbic with the original commits. Editing #1103 directly wouldn't survive the next force-push of changeset-release/main.

Author: ascorbic

.changeset/fix-local-media-id-normalization.md

@@ -2,4 +2,8 @@
 "emdash": patch
 ---
 
+pr: 1100
+commit: f753dba340dca791d4cf34a78c29ed6a0d552cd4
+author: jcheese1
+
 Resolve bare local media IDs in media fields before falling back to external URLs.

.changeset/ready-worlds-rush.md

@@ -3,4 +3,8 @@
 "emdash": patch
 ---
 
+pr: 1101
+commit: e539731451994206bf60824a31815a8a925c7252
+author: ascorbic
+
 Fixes experimental registry navigation and allows the configured registry aggregator through the admin CSP.