tf-a-weekly: Update to Ubuntu Jammy Docker image

As almost all of other TF-A CI jobs now.

Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
Change-Id: Ie4e6c1e9002ef8373eab260feeb3ae988d8143a9
diff --git a/tf-a-weekly.yaml b/tf-a-weekly.yaml
index 061d702..f7f45ad 100644
--- a/tf-a-weekly.yaml
+++ b/tf-a-weekly.yaml
@@ -1,6 +1,6 @@
 - job:
     name: tf-a-weekly.yaml
-    node: docker-amd64-tf-a-bionic
+    node: docker-amd64-tf-a-jammy
     project-type: freestyle
     concurrent: false
     disabled: false