Add changelog entries

Author: SBGoods

.changes/unreleased/FEATURES-20250206-114700.yaml

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+kind: FEATURES
+body: 'resource/schema: Added `WriteOnly` schema field for managed resource schemas to indicate a write-only attribute. 
+Write-only attribute values are not saved to the Terraform plan or state artifacts.'
+time: 2025-02-06T11:47:00.176842-05:00
+custom:
+    Issue: "1044"

.changes/unreleased/NOTES-20250206-114436.yaml

@@ -0,0 +1,5 @@
+kind: NOTES
+body: Write-only attribute support is in technical preview and offered without compatibility promises until Terraform 1.11 is generally available.
+time: 2025-02-06T11:44:36.156747-05:00
+custom:
+    Issue: "1044"