Add OWNERS, CODEOWNERS, and pre-commit GitHub Action

Enable Prow-based PR review workflow for shiftstack-qa:
- OWNERS and OWNERS_ALIASES for /lgtm and /approve commands
- CODEOWNERS for automatic reviewer assignment
- GitHub Action running pre-commit (ansible-lint) on PRs,
  matching gate.sh behavior

Ref: OSPRH-32049
Change-Id: I7c580137f660b31a3e3f06b62d07b82838e9663c
Signed-off-by: Itay Matza <imatza@redhat.com>

Author: imatza-rh

.github/CODEOWNERS

@@ -0,0 +1,4 @@
+# Default reviewers for all files
+# https://docs.github.com/en/repositories/managing-your-repositorys-settings-and-features/customizing-your-repository/about-code-owners
+
+* @dlaw4608 @ekuris-redhat @eshulman2 @gryf @imatza-rh @mandre @stephenfin @tusharjadhav3302 @winiciusallan

.github/workflows/ansible-lint.yml

@@ -0,0 +1,28 @@
+---
+name: Ansible Lint
+
+on:
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  ansible-lint:
+    runs-on: ubuntu-latest
+    container:
+      image: quay.io/shiftstack-qe/shiftstack-client
+      options: --user root
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Mark workspace as safe for git
+        run: git config --global --add safe.directory "$GITHUB_WORKSPACE"
+
+      - name: Install Ansible collections
+        run: ansible-galaxy collection install -r requirements.yaml
+
+      - name: Run pre-commit (ansible-lint)
+        run: pre-commit run --all-files
+        env:
+          ANSIBLE_VAULT_PASSWORD_FILE: /home/cloud-admin/.vault-pass

OWNERS

@@ -0,0 +1,8 @@
+# See the OWNERS docs: https://git.k8s.io/community/contributors/guide/owners.md
+# This file just uses aliases defined in OWNERS_ALIASES.
+
+approvers:
+  - shiftstack-approvers
+
+reviewers:
+  - shiftstack-reviewers

OWNERS_ALIASES

@@ -0,0 +1,23 @@
+# See the OWNERS_ALIASES docs: https://git.k8s.io/community/contributors/guide/owners.md#OWNERS_ALIASES
+
+aliases:
+  shiftstack-approvers:
+    - dlaw4608
+    - ekuris-redhat
+    - eshulman2
+    - gryf
+    - imatza-rh
+    - mandre
+    - stephenfin
+    - tusharjadhav3302
+    - winiciusallan
+  shiftstack-reviewers:
+    - dlaw4608
+    - ekuris-redhat
+    - eshulman2
+    - gryf
+    - imatza-rh
+    - mandre
+    - stephenfin
+    - tusharjadhav3302
+    - winiciusallan