Trigger layer version update in documentation (#704)

* Trigger version update in documentation

* typo

* Move input to variables

* Needs pypi package

* both pypi and layers

* testing trigger

* Remove testing

Author: rithikanarayan

ci/input_files/build.yaml.tpl

@@ -206,6 +206,22 @@ publish-pypi-package:
   script:
     - ./ci/publish_pypi.sh
 
+update-layer-versions-docs:
+  stage: publish
+  trigger:
+    project: DataDog/serverless-ci
+  rules:
+    - if: '$CI_COMMIT_TAG =~ /^v.*/'
+  needs: {{ range $runtime := (ds "runtimes").runtimes }}
+    - publish-layer-prod ({{ $runtime.name }}-{{ $runtime.arch}})
+  {{- end }}
+    - publish-pypi-package
+  variables:
+    RUN_LAMBDA_LAYER_DOCUMENTATION: "true"
+    RUN_LAMBDA_DATADOG_CI: "true"
+    RUN_LAMBDA_UI_LAYER_VERSIONS: "true"
+    RUN_LAMBDA_RUNTIMES: "true"
+
 layer bundle:
   stage: build
   tags: ["arch:amd64"]