Update publication candidate

Author: anth-volk

.github/publication_scope.json

@@ -0,0 +1,6 @@
+{
+  "base_release_version": "1.115.2",
+  "candidate_scope": "1.115.2-patch",
+  "release_bump": "patch",
+  "would_release_as_at_build_time": "1.115.3"
+}

CHANGELOG.md

@@ -1,3 +1,15 @@
+## [1.115.3] - 2026-05-14
+
+### Changed
+
+- Split candidate rc versions from final release versions for staging, promotion, and publication.
+
+### Fixed
+
+- Temporarily skip the Stage 1 Medicaid enrollment validator while its 2024 target and 2025 formula-period alignment is verified.
+- Fixed publication candidate versioning when the GitHub Actions script is invoked directly from `.github/`.
+
+
 ## [1.115.2] - 2026-05-13
 
 ### Changed