Non parallel multiarch

Possibly more successful multiarch pipeline run with max-parallelism=1 - https://gitlab.developers.cam.ac.uk/uis/devops/infra/dockerimages/-/jobs/2226216

Part of https://gitlab.developers.cam.ac.uk/uis/devops/iam/admin/-/issues/incident/156

.gitlab-ci.yml

@@ -108,13 +108,13 @@ variables:
 #     WHEN_TO_RUN: "weekly"
 #   needs: ["ucam-shib-proxy"]
 
-# ucam-shib3-proxy:
-#   extends: .build_and_push
-#   variables:
-#     IMAGE_TYPE: ucam-shib3-proxy
-#     IMAGE_NAME: ucam-shib3-proxy
-#     TAGS: shib3 latest
-#     WHEN_TO_RUN: "weekly"
+ucam-shib3-proxy:
+  extends: .build_and_push
+  variables:
+    IMAGE_TYPE: ucam-shib3-proxy
+    IMAGE_NAME: ucam-shib3-proxy
+    TAGS: shib3 latest
+    WHEN_TO_RUN: "weekly"
 
 # ucam-shib3-proxy-container-scanning:
 #   extends: .container-scanning
@@ -208,18 +208,18 @@ variables:
 #     WHEN_TO_RUN: "weekly"
 #   needs: ["gcloud-docker"]
 
-photo-api-base-py-3-11:
-  extends: .build_and_push
-  variables:
-    IMAGE_TYPE: photo-api-base-slim
-    IMAGE_NAME: photo-api-base
-    TAGS: py3.11-fr1.3.0-dlib19.24.2
-    PYTHON_VERSION: "3.11"
-    FACE_RECOG_VERSION: "1.3.0"
-    DLIB_VERSION: "19.24.2"
-    BUILD_ARGS: "PYTHON_VERSION FACE_RECOG_VERSION DLIB_VERSION"
-    IMAGE_ARCHS: "linux/amd64,linux/arm64"
-    WHEN_TO_RUN: "weekly"
+# photo-api-base-py-3-11:
+#   extends: .build_and_push
+#   variables:
+#     IMAGE_TYPE: photo-api-base-slim
+#     IMAGE_NAME: photo-api-base
+#     TAGS: py3.11-fr1.3.0-dlib19.24.2
+#     PYTHON_VERSION: "3.11"
+#     FACE_RECOG_VERSION: "1.3.0"
+#     DLIB_VERSION: "19.24.2"
+#     BUILD_ARGS: "PYTHON_VERSION FACE_RECOG_VERSION DLIB_VERSION"
+#     IMAGE_ARCHS: "linux/amd64,linux/arm64"
+#     WHEN_TO_RUN: "weekly"
 
 # photo-api-base-py-3-11-container-scanning:
 #   extends: .container-scanning