build(docs-infra): introduce new process for generating data for the …

…events page (#45588)

This commit introduces a new process for generating data for the AIO
[events page](https://angular.io/events), which streamlines the process
and minimizes duplication and manual work. For more details, see
`aio/scripts/generate-events/README.md`.

PR Close #45588

.github/workflows/update-events.yml

@@ -0,0 +1,42 @@
+name: Update AIO events
+
+on:
+  workflow_dispatch:
+    inputs: {}
+  schedule:
+    # Run every day at 15:00.
+    - cron: 0 15 * * *
+
+# Declare default permissions as read only.
+permissions:
+  contents: read
+
+jobs:
+  update_events:
+    name: Update `events.json` (if necessary)
+    if: github.repository == 'angular/angular'
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout the repository
+        uses: actions/checkout@2541b1294d2704b0964813337f33b291d3f8596b # tag=v3.0.2
+        with:
+          # Setting `persist-credentials: false` prevents the github-action account from being the
+          # account that is attempted to be used for authentication, instead the remote is set to
+          # an authenticated URL.
+          persist-credentials: false
+      - name: Install AIO dependencies
+        run: yarn --cwd=aio install
+      - name: Generate `events.json`
+        run: node aio/scripts/generate-events/index.mjs --ignore-invalid-dates
+      - name: Create a PR (if necessary)
+        uses: gkalpak/dev-infra/github-actions/create-pr-for-changes@88c198ae1a3462223cb5c1e83338e4b94b435283
+        with:
+          branch-prefix: docs-update-events
+          pr-title: 'docs: update events'
+          pr-description: |
+            Generated `events.json` with the latest events retrieved from the Firebase DB.
+          pr-labels: |
+            action: review
+            comp: docs
+            target: patch
+          angular-robot-key: ${{ secrets.ANGULAR_ROBOT_PRIVATE_KEY }}

aio/BUILD.bazel

@@ -90,7 +90,6 @@ TEST_DEPS = APPLICATION_DEPS + [
     "@aio_npm//karma-jasmine",
     "@aio_npm//karma-jasmine-html-reporter",
     "@aio_npm//puppeteer",
-    "@aio_npm//timezone-mock",
 ]
 
 architect(

aio/content/marketing/events-contributing.md

@@ -0,0 +1,19 @@
+# Contributing to `events.json`
+
+
+## About this list
+
+We maintain a list of events (conferences, meetups, etc.) where our team has or will be presenting.
+This data is stored in `events.json`.
+
+
+## How to get an event listed
+
+The `events.json` file is periodically generated from data stored in a Firebase database.
+See [here](https://github.com/angular/angular/blob/main/aio/scripts/generate-events/README.md) for more details.
+
+If you want to get an event listed, please get in touch with the Angular DevRel team at [devrel@angular.io](mailto:devrel@angular.io).
+
+> WARNING:
+> The `events.json` file is only intended to be updated via a [script](https://github.com/angular/angular/blob/main/aio/scripts/generate-events/index.mjs).
+> Do not manually edit the file, because your changes will be overwritten the next time the script runs.