prepping for 1.20.5 version release (#22216)

Author: nitin-sachdev-29

.changelog/22174.txt

@@ -1,3 +1,3 @@
 ```release-note:improvement
-dependency: upgrade consul/api to use Go 1.31.2
+dependency: upgraded consul/api to 1.31.2
 ```

CHANGELOG.md

@@ -1,3 +1,16 @@
+## 1.20.5 (March 11, 2025)
+
+SECURITY:
+
+* Update `golang.org/x/crypto` to v0.35.0 to address [GO-2025-3487](https://pkg.go.dev/vuln/GO-2025-3487).
+Update `golang.org/x/oauth2` to v0.27.0 to address [GO-2025-3488](https://pkg.go.dev/vuln/GO-2025-3488).
+Update `github.com/go-jose/go-jose/v3` to v3.0.4 to address [GO-2025-3485](https://pkg.go.dev/vuln/GO-2025-3485). [[GH-22207](https://github.com/hashicorp/consul/issues/22207)]
+* Upgrade Go to 1.23.6. [[GH-22204](https://github.com/hashicorp/consul/issues/22204)]
+
+BUG FIXES:
+
+* logging: Fixed compilation error for OS NetBSD. [[GH-22184](https://github.com/hashicorp/consul/issues/22184)]
+
 ## 1.20.4 (February 20, 2025)
 
 IMPROVEMENTS:

version/VERSION

@@ -1 +1 @@
-1.20.5-dev
+1.20.5