[GHA] Copied callable-flex-update from Symfony recipes to bump Ubuntu ver

Author: alongosz

.github/workflows/callable-flex-update.yaml

@@ -0,0 +1,56 @@
+# Taken from https://raw.githubusercontent.com/symfony/recipes/refs/heads/main/.github/workflows/callable-flex-update.yml
+name: Update Flex endpoint
+
+on:
+    workflow_call:
+        inputs:
+            branch:
+                default: main
+                required: false
+                type: string
+            contrib:
+                required: false
+                type: boolean
+            versions_json:
+                required: false
+                type: string
+
+jobs:
+    flex-update:
+        name: Update Flex endpoint
+        runs-on: Ubuntu-latest
+
+        steps:
+            -
+                name: Checkout
+                uses: actions/checkout@v3
+                id: checkout
+                with:
+                    fetch-depth: 0
+
+            -
+                name: Install tools
+                run: |
+                    git config --global user.email ""
+                    git config --global user.name "github-action[bot]"
+                    cd .github
+                    wget -q -O recipes-checker.zip https://codeload.github.com/symfony-tools/recipes-checker/zip/refs/heads/main
+                    unzip recipes-checker.zip
+                    cd recipes-checker-main
+                    composer install --ansi --no-dev
+
+            -
+                name: Update Flex endpoint
+                run: |
+                    mkdir .github/flex-endpoint
+                    git ls-tree HEAD */*/* | php .github/recipes-checker-main/run generate:flex-endpoint ${{ github.repository }} ${{ inputs.branch }} flex/main .github/flex-endpoint ${{ inputs.versions_json }} ${{ inputs.contrib && '--contrib' || '' }}
+                    git switch flex/main
+                    git rm -q *.json
+                    mv .github/flex-endpoint/*.json .
+                    git add *.json
+                    cp -a .github/flex-endpoint/archived .
+                    git add archived/
+                    php .github/recipes-checker-main/run generate:recipes-readme index.json ${{ inputs.contrib && '--contrib' || '' }} > RECIPES.md
+                    git add RECIPES.md
+                    git commit -m 'Update Flex endpoint' || true
+                    git push origin -f flex/main

.github/workflows/flex-update.yml

@@ -11,6 +11,6 @@ defaults:
 
 jobs:
     call-flex-update:
-        uses: symfony/recipes/.github/workflows/callable-flex-update.yml@main
+        uses: ./.github/workflows/callable-flex-update.yaml
         with:
             branch: master