docs(changelog): changelog for lts-v2.8.27 release

Change-Id: Iaab552167165d1eeb2ed789a7fb1367b1aaa6226
Signed-off-by: Release CI <ci@trustedfirmware.org>
diff --git a/pyproject.toml b/pyproject.toml
index 2e76e14..0eb1a70 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "trusted-firmware-a"
-version = "2.8.26"
+version = "2.8.27"
 description = "Trusted Firmware-A (TF-A) Python dependencies."
 authors = ["Arm Ltd."]
 license = "BSD-3-Clause"