chore: Changelogs for v0.27.0-alpha.1 (#490)

* chore: Changelogs for `v0.26.0-alpha.1`

* update copywrite file

Author: austinvalle

.changes/unreleased/NOTES-20250314-101313.yaml

@@ -0,0 +1,6 @@
+kind: NOTES
+body: This alpha pre-release contains the protocol definitions for managed resource identity, which can used with Terraform v1.12.0-alpha20250312,
+    to store and read identity data during plan and apply workflows.
+time: 2025-03-14T10:13:13.942004-04:00
+custom:
+    Issue: "476"

.changes/unreleased/FEATURES-20250210-175144.yaml renamed to .changes/unreleased/upcoming-stable/FEATURES-20250210-175144.yaml

@@ -6,7 +6,7 @@ project {
 
   header_ignore = [
     # changie tooling configuration and CHANGELOG entries (prose)
-    ".changes/unreleased/*.yaml",
+    ".changes/unreleased/**",
     ".changie.yaml",
 
     # GitHub issue template configuration