feat(ci): add ci automation (#343)

Add auto reviewer
Add auto labelling for knuu project board
Add auto add to project

.github/auto_request_review.yml

@@ -0,0 +1,20 @@
+reviewers:
+  defaults:
+    - devops
+  groups:
+    devops:
+      - mojtaba-esk
+      - smuu
+      - sysrex
+      - jrmanes
+      - aWN4Y25pa2EK
+      - MSevey
+files:
+  ".github/**":
+    - MSevey
+    - devops
+options:
+  ignore_draft: true
+  ignored_keywords:
+    - WIP
+  number_of_reviewers: 3

.github/workflows/housekeeping.yml

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+name: Housekeeping
+
+on:
+  issues:
+    types: [opened]
+  pull_request_target:
+    types: [opened, ready_for_review]
+
+jobs:
+  issue-management:
+    if: ${{ github.event.issue }}
+    name: Add issues to project and add triage label
+    uses: celestiaorg/.github/.github/workflows/[email protected]
+    secrets: inherit
+    permissions:
+      issues: write
+      pull-requests: write
+    with:
+      run-labels: true
+      labels-to-add: "knuu"
+      run-projects: true
+      project-url: https://github.com/orgs/celestiaorg/projects/27
+
+  add-pr-to-project:
+    # ignore dependabot PRs
+    if: ${{ github.event.pull_request && github.actor != 'dependabot[bot]' }}
+    name: Add PRs to project
+    uses: celestiaorg/.github/.github/workflows/[email protected]
+    secrets: inherit
+    permissions:
+      issues: write
+      pull-requests: write
+    with:
+      run-projects: true
+      project-labels: "knuu"
+      project-url: https://github.com/orgs/celestiaorg/projects/27
+
+  auto-add-reviewer:
+    name: Auto add reviewer to PR
+    if: github.event.pull_request
+    uses: celestiaorg/.github/.github/workflows/[email protected]
+    secrets: inherit
+    permissions:
+      issues: write
+      pull-requests: write
+    with:
+      run-auto-request-review: true
+
+  auto-add-assignee:
+    # ignore dependabot PRs
+    if: ${{ github.event.pull_request && github.actor != 'dependabot[bot]' }}
+    name: Assign issue and PR to creator
+    runs-on: ubuntu-latest
+    permissions:
+      issues: write
+      pull-requests: write
+    steps:
+      - name: Set pull_request url and creator login
+        # yamllint disable rule:line-length
+        run: |
+          echo "PR=${{ github.event.pull_request.html_url }}" >> $GITHUB_ENV
+          echo "CREATOR=${{ github.event.pull_request.user.login }}" >> $GITHUB_ENV
+        # yamllint enable rule:line-length
+      - name: Assign PR to creator
+        run: gh pr edit ${{ env.PR }} --add-assignee ${{ env.CREATOR }}
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/stale.yml

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+name: "Close stale issues and PRs"
+on:
+  schedule:
+    - cron: "30 8 * * *"
+
+jobs:
+  stale:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/stale@v9
+        with:
+          repo-token: ${{ secrets.GITHUB_TOKEN }}
+          days-before-stale: 60
+          days-before-close: 14
+          days-before-issue-stale: 90
+          days-before-issue-close: 21
+          exempt-issue-labels: "knuu"
+          start-date: "2024-05-16T00:00:00Z"