Updates for tfc-agent release 1.25.1 (#1112)

Author: kelsi-hoyle

content/terraform-docs-agents/v1.25.x/docs/cloud-docs/agents/changelog.mdx

@@ -18,6 +18,12 @@ within each release are categorized into one or more of the following labels:
 Each version below corresponds to a release artifact available for download on
 the official [releases website](https://releases.hashicorp.com/tfc-agent/).
 
+## 1.25.1 (10/14/2025)
+
+SECURITY:
+
+* Updated Docker image to address various OpenSSL CVEs (#1213)
+
 ## 1.25.0 (09/30/2025)
 
 FEATURES: