ci: add auto review assignment and PR template (#374)

* ci: add auto review assignment

* chore: add updated PR template

Author: MSevey

.github/auto_request_review.yml

@@ -0,0 +1,22 @@
+reviewers:
+  defaults:
+    - jcstein
+    - rollkit
+  groups:
+    rollkit:
+      - Manav-Aggarwal
+      - tzdybal
+      - gupadhyaya
+      - tuxcanfly
+      - MSevey
+      - yarikbratashchuk
+files:
+  ".github/**":
+    - MSevey
+    - jcstein
+    - rollkit
+options:
+  ignore_draft: true
+  ignored_keywords:
+    - WIP
+  number_of_reviewers: 3

.github/pull_request_template.md

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+<!--
+Please read and fill out this form before submitting your PR.
+
+Please make sure you have reviewed our contributors guide before submitting your
+first PR.
+-->
+
+## Overview
+
+<!-- 
+Please provide an explanation of the PR, including the appropriate context,
+background, goal, and rationale. If there is an issue with this information,
+please provide a tl;dr and link the issue. 
+
+Ex: Closes #<issue number>
+-->

.github/workflows/auto_review_request.yml

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+name: Auto Review Request
+
+on:
+  pull_request_target:
+    types: [opened, ready_for_review]
+
+jobs:
+  auto-add-reviewer:
+    name: Auto add reviewer to PR
+    uses: rollkit/.github/.github/workflows/reusable_housekeeping.yml@v0.3.0
+    secrets: inherit
+    permissions:
+      issues: write
+      pull-requests: write
+    with:
+      run-auto-request-review: true
+
+  auto-add-assignee:
+    # ignore dependabot PRs
+    if: ${{ github.actor != 'dependabot[bot]' }}
+    name: Assign issue and PR to creator
+    runs-on: ubuntu-latest
+    permissions:
+      issues: write
+      pull-requests: write
+    steps:
+      - name: Set pull_request url and creator login
+        # yamllint disable rule:line-length
+        run: |
+          echo "PR=${{ 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 }}