Move dependency handling for integrations to script. (#19185)

This will simplify handling across repositories.

.github/workflows/generate-integrations.yml

@@ -38,7 +38,7 @@ jobs:
           sudo apt-get install python3-venv
           python3 -m venv ./virtualenv
           source ./virtualenv/bin/activate
-          pip install jsonschema referencing jinja2 ruamel.yaml
+          ./integrations/pip.sh
       - name: Generate Integrations
         id: generate
         run: |

integrations/pip.sh

@@ -0,0 +1,3 @@
+#!/bin/sh
+
+exec pip install jsonschema referencing jinja2 ruamel.yaml