Move capabilities check behind `admin_init` and `is_admin` #473

	name: Lint PHP
	on:
	pull_request:
	types: [ opened, edited, reopened, ready_for_review ]
	paths:
	- '**.php'

	concurrency:
	group: ${{ github.workflow }}-${{ github.event_name == 'pull_request' && github.head_ref \|\| github.sha }}
	cancel-in-progress: true

	jobs:
	phpcs:
	name: Run PHP Code Sniffer
	runs-on: ubuntu-latest
	steps:

	- name: Checkout repository
	uses: actions/checkout@v4

	# User PHP 7.4 for compatibility with the WordPress codesniffer rules.
	- name: Setup PHP
	uses: shivammathur/setup-php@v2
	with:
	php-version: '7.4'
	coverage: none
	tools: phpcs

	- name: Get changed files
	uses: technote-space/get-diff-action@v6
	with:
	SUFFIX_FILTER: .php

	- name: Get Composer cache directory
	id: composer-cache
	run: echo "dir=$(composer config cache-files-dir)" >> $GITHUB_OUTPUT
	if: "!! env.GIT_DIFF"

	- name: Cache Composer vendor directory
	uses: actions/cache@v3
	with:
	path: ${{ steps.composer-cache.outputs.dir }}
	key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.lock') }}
	restore-keys: \|
	${{ runner.os }}-composer-
	if: "!! env.GIT_DIFF"

	- name: Validate composer.json and composer.lock
	run: composer validate
	if: "!! env.GIT_DIFF"

	- name: Install dependencies
	run: composer install --no-progress --optimize-autoloader --prefer-dist
	if: "!! env.GIT_DIFF"

	- name: Detecting PHP Code Standards Violations
	run: vendor/bin/phpcs --standard=phpcs.xml -s ${{ env.GIT_DIFF }}
	if: "!! env.GIT_DIFF"

Provide feedback