Added missing github workflows

.github/workflows/deploy-docs.yml

@@ -0,0 +1,52 @@
+name: Deploy Docs
+run-name: ${{ format('{0} ({1})', github.workflow, github.event.inputs.build-refname || 'all') }}
+on:
+  workflow_dispatch:
+    inputs:
+      build-refname:
+        description: Enter git refname to build (e.g., 5.7.x).
+        required: false
+  push:
+    branches: docs-build
+env:
+  GRADLE_ENTERPRISE_SECRET_ACCESS_KEY: ${{ secrets.GRADLE_ENTERPRISE_SECRET_ACCESS_KEY }}
+permissions:
+  contents: write
+  actions: write
+jobs:
+  build:
+    if: github.repository_owner == 'micrometer-metrics'
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 5
+      - name: Set Up Gradle
+        uses: spring-io/spring-gradle-build-action@v2
+        with:
+          java-version: '17'
+          distribution: temurin
+      - name: Set up refname build
+        if: github.event.inputs.build-refname
+        run: |
+          git fetch --depth 1 https://github.com/$GITHUB_REPOSITORY ${{ github.event.inputs.build-refname }}
+          echo BUILD_REFNAME=${{ github.event.inputs.build-refname }} >> $GITHUB_ENV
+          echo BUILD_VERSION=$(git cat-file --textconv FETCH_HEAD:gradle.properties | sed -n '/^version=/ { s/^version=//;p }') >> $GITHUB_ENV
+      - name: Run Antora
+        run: ./gradlew antora
+      - name: Copy the cache to be included in the site
+        run: cp -rf build/antora/inject-collector-cache-config-extension/.cache build/site/
+      - name: Publish Docs
+        uses: JamesIves/github-pages-deploy-action@v4
+        with:
+         token: ${{ secrets.DOCS_PAGES_TOKEN }}
+         repository-name: micrometer-metrics/docs-pages
+         target-folder: context-propagation/reference
+         folder: build/site # The folder the action should deploy.
+      - name: Bust Clouflare Cache
+        uses: spring-io/spring-doc-actions/[email protected]
+        with:
+          context-root: context-propagation
+          cloudflare-zone-id: ${{ secrets.CLOUDFLARE_ZONE_ID }}
+          cloudflare-cache-token: ${{ secrets.CLOUDFLARE_CACHE_TOKEN }}