chore: establish a basic structure for document generation

Author: rjaegers

.github/workflows/continuous-integration.yml

@@ -25,3 +25,7 @@ jobs:
       id-token: write
       packages: write
       pull-requests: write
+  document-generation:
+    uses: ./.github/workflows/wc-document-generation.yml
+    permissions:
+      contents: read

.github/workflows/wc-document-generation.yml

@@ -0,0 +1,27 @@
+---
+name: Document Generation
+
+on:
+  workflow_call:
+    inputs:
+      flavor:
+        required: true
+        type: string
+
+permissions:
+  contents: read
+
+jobs:
+  generate-documentation:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: step-security/harden-runner@002fdce3c6a235733a90a27c80493a3241e56863 # v2.12.1
+        with:
+          disable-sudo-and-containers: true
+          egress-policy: audit
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        with:
+          persist-credentials: false
+      - run: |
+          set -Eeuo pipefail
+          python -m pip install gherkin-official https://sbdl.dev/sbdl-package.tar.gz