jammy-amd64-tf-a-build: install python3-git, unidiff

For the tf-a-lts-triage job

Change-Id: I050944e3cb8c2def8439865827751da8209ed4f5
Signed-off-by: Arthur She <arthur.she@linaro.org>
diff --git a/jammy-amd64-tf-a-build/Dockerfile b/jammy-amd64-tf-a-build/Dockerfile
index 9d580f4..0cb7488 100644
--- a/jammy-amd64-tf-a-build/Dockerfile
+++ b/jammy-amd64-tf-a-build/Dockerfile
@@ -46,6 +46,7 @@
     python3 \
     python3-pycryptodome \
     python3-dev \
+    python3-git \
     python3-psutil \
     python3-pyasn1 \
     python3-venv \
diff --git a/jammy-amd64-tf-a-build/requirements_python3.txt b/jammy-amd64-tf-a-build/requirements_python3.txt
index 4ab4f0e..6ff6fb0 100644
--- a/jammy-amd64-tf-a-build/requirements_python3.txt
+++ b/jammy-amd64-tf-a-build/requirements_python3.txt
@@ -14,4 +14,5 @@
 sphinx-rtd-theme==1.2.0
 sphinxcontrib-plantuml==0.24.1
 tuxsuite==1.37.1
+unidiff>=0.7.4
 xmltodict==0.12.0