ci: workspace mcpp bootstrap pin -> 2026.7.28.2 (released, mirrored, indexed)

Author: Sunrisepeak

.github/workflows/ci-fresh-install.yml

@@ -40,7 +40,7 @@ concurrency:
 # fails with `version not found` instead of silently testing an older
 # binary. Bump together with the .xlings.json workspace pin at release.
 env:
-  MCPP_PIN: '2026.7.27.1'
+  MCPP_PIN: '2026.7.28.2'
 
 jobs:
   # ──────────────────────────────────────────────────────────────────

.xlings.json

@@ -1,5 +1,5 @@
 {
   "workspace": {
-    "mcpp": "2026.7.27.1"
+    "mcpp": "2026.7.28.2"
   }
 }