Add missing entries to changelog (#375)

Author: lahsivjar

CHANGELOG.asciidoc

@@ -27,6 +27,7 @@ https://github.com/elastic/apm-aws-lambda/compare/v1.2.0...main[View commits]
 - experimental:[] Create proxy transaction with error results if not reported by agent {lambda-pull}315[315]
 - Wait for the final platform report metrics on shutdown {lambda-pull}347[347]
 - Process platform report metrics when extension is lagging {lambda-pull}358[358]
+- Add TLS support {lambda-pull}357[357]
 
 [float]
 [[lambda-1.2.0]]