[AAE-7986] Migrate ADF from Travis to Github actions (#8050)

* rebased

* [ci:force]

.github/actions/before-install/action.yml

@@ -0,0 +1,13 @@
+name: "before-install"
+description: "launch before_install.sh and then parse env vars"
+runs:
+  using: "composite"
+  steps:
+    - name: Before install
+      shell: bash
+      run: |
+        bash -xv ./scripts/ci/job_hooks/before_install.sh "/tmp/github_vars.env"
+        while read ENVVAR; do
+          echo "$ENVVAR" >> $GITHUB_ENV
+        done < "/tmp/github_vars.env"
+