Update PHP Dependencies and run tests with PHP 8.3 (#237)

# Summary <!-- Required -->

Updates PHP dev dependencies (patch versions) and PHP in composer to
support PHP < 9.

This PR will also add a CI workflow to run tests in PHP 8.3. 

### Closes: #236 

## Contributor checklist <!-- Required -->

<!--- Go over all the following points, and put an `x` in all the boxes
that apply. -->
<!--- If you are unsure about any of these, please ask for
clarification. We are here to help! -->

- [x] I agree to follow this project's [**Code of
Conduct**](https://github.com/10up/.github/blob/trunk/CODE_OF_CONDUCT.md).
- [x] I have updated the documentation accordingly 
- [x] I have added tests to cover changes introduced by this pull
request
- [x] All new and existing tests pass

## Testing <!-- Required -->

- [ ] Unit tests pass with PHP 8.3 and previous PHP versions

<!-- List any configuration requirements for testing. -->

### Reviewer checklist <!-- Required -->

<!-- The following checklist is for the reviewer: add any steps that may
be relevant while reviewing this pull request -->

- [ ] Code changes review
- [ ] Documentation changes review
- [ ] Unit tests pass
- [ ] Static analysis passes


## After merge

- [ ] Tag v1.0.1

.github/workflows/ci.yml

@@ -12,11 +12,9 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        php: [ '8.2' ]
-        os: [ 'ubuntu-20.04' ]
+        php: [ '8.3', '8.2', '8.1' ]
+        os: [ 'ubuntu-latest' ]
         include:
-          - php: '8.1'
-            os: 'ubuntu-latest'
           - php: '8.0'
             os: 'ubuntu-20.04'
           - php: '7.4'
@@ -29,19 +27,11 @@ jobs:
     steps:
       - uses: actions/checkout@7884fcad6b5d53d10323aee724dc68d8b9096a2e # v2.4.2
 
-      # TODO: replace with https://github.com/marketplace/actions/setup-php-action
-      - name: Switch to PHP ${{ env.PHP_VERSION }}
-        run: |
-          sudo update-alternatives --set php /usr/bin/php$PHP_VERSION
-          sudo update-alternatives --set phar /usr/bin/phar$PHP_VERSION
-          sudo update-alternatives --set phar.phar /usr/bin/phar.phar$PHP_VERSION
-          sudo update-alternatives --set phpize /usr/bin/phpize$PHP_VERSION
-          sudo update-alternatives --set php-config /usr/bin/php-config$PHP_VERSION
-
-      - name: Enable pcov
-        run: |
-          sudo phpdismod xdebug
-          sudo phpenmod pcov
+      - name: Set up PHP ${{ matrix.php }}
+        uses: shivammathur/setup-php@e6f75134d35752277f093989e72e140eaa222f35 # v2.28.0
+        with:
+          php-version: ${{ matrix.php }}
+          coverage: pcov
 
       - name: Get Composer cache directory
         id: composer-cache

composer.json

@@ -5,22 +5,22 @@
     "version": "1.0.0",
     "prefer-stable": true,
     "require": {
-        "php": ">=7.4 < 8.3",
+        "php": ">=7.4 < 9",
         "phpunit/phpunit": "^9.6",
         "mockery/mockery": "^1.6",
         "antecedent/patchwork": "^2.1"
     },
     "require-dev": {
         "behat/behat": "^v3.11.0",
         "sebastian/comparator": "^4.0.8",
-        "php-coveralls/php-coveralls": "^v2.5",
+        "php-coveralls/php-coveralls": "^v2.7",
         "sempro/phpunit-pretty-print": "^1.4",
         "phpstan/phpstan": "^1.10",
         "phpstan/phpstan-phpunit": "^1.3",
         "phpstan/phpstan-mockery": "^1.1",
         "phpcompatibility/php-compatibility": "^9.3",
         "php-stubs/wordpress-globals": "^0.2",
-        "php-stubs/wordpress-stubs": "^6.2",
+        "php-stubs/wordpress-stubs": "^6.3",
         "friendsofphp/php-cs-fixer": "^3.4",
         "dealerdirect/phpcodesniffer-composer-installer": "^0.7"
     },