ci: use reusable workflows (#60)

Use the reusable workflow defined in bonita-documentation-site to
configure and maintain them more easily.

Covers
bonitasoft/bonita-documentation-site#686
Covers
bonitasoft/bonita-documentation-site#700

.github/workflows/pr-build-preview.yml

@@ -0,0 +1,15 @@
+name: Build PR preview
+
+on:
+  pull_request:
+    paths:
+      - 'modules/**'
+      - 'antora.yml'
+      - '.github/workflows/pr-build-preview.yml'
+
+jobs:
+  build:
+    uses: bonitasoft/bonita-documentation-site/.github/workflows/_reusable_surge-build-preview.yml@master
+    secrets: inherit
+    with:
+      component-name: cloud

.github/workflows/pr-comments-changes-list.yml

@@ -0,0 +1,17 @@
+name: Comments PR with changes list
+
+on:
+  # use pull_request event to test update done in bonita-documentation-site/.github/workflows/_reusable_pr-comment-list-changes.yml
+  pull_request_target:
+    paths:
+      - '.github/workflows/pr-comments-changes-list.yml'
+      - 'modules/**'
+
+jobs:
+  commentsPRChanges:
+    permissions:
+      pull-requests: write # write PR comments
+    uses: bonitasoft/bonita-documentation-site/.github/workflows/_reusable_pr-comment-list-changes.yml@master
+    secrets: inherit
+    with:
+      component-name: cloud

.github/workflows/pr-deploy-preview.yml

@@ -0,0 +1,16 @@
+name: Deploy PR preview
+
+
+on:
+  workflow_run:
+    workflows:
+      - "Build PR preview"
+    types:
+      - completed
+
+jobs:
+  deploy:
+    permissions:
+      pull-requests: write
+    uses: bonitasoft/bonita-documentation-site/.github/workflows/_reusable_surge-deploy-preview.yml@master
+    secrets: inherit

.github/workflows/pr-validate-references.yml

@@ -0,0 +1,16 @@
+name: Validate xref
+
+on:
+  pull_request:
+    paths:
+      - 'modules/**'
+      - 'antora.yml'
+      - '.github/workflows/pr-validate-references.yml'
+
+jobs:
+  validate_xref:
+    uses: bonitasoft/bonita-documentation-site/.github/workflows/_reusable_pr-validate-references.yml@master
+    secrets: inherit
+    with:
+      component-name: cloud
+      fail-on-warning: true