Add Psalm support

Author: Rom1-B

.github/workflows/continuous-integration.yml

@@ -115,6 +115,11 @@ jobs:
         run: |
           echo -e "\033[0;33mExecuting PHPStan...\033[0m"
           vendor/bin/phpstan analyze --ansi --memory-limit=2G --no-interaction --no-progress
+      - name: "Psalm"
+        if: ${{ !cancelled() && hashFiles(format('{0}/psalm.xml', inputs.plugin-key)) != '' }}
+        run: |
+          echo -e "\033[0;33mExecuting Psalm...\033[0m"
+          php ../../vendor/bin/psalm --long-progress --output-format=github
       - name: "JS Lint"
         if: ${{ !cancelled() && hashFiles(format('{0}/node_modules/.bin/eslint', inputs.plugin-key)) != '' && (hashFiles(format('{0}/eslint.config.js', inputs.plugin-key)) != '' || hashFiles(format('{0}/eslint.config.mjs', inputs.plugin-key)) != '' || hashFiles(format('{0}/eslint.config.cjs', inputs.plugin-key)) != '' || hashFiles(format('{0}/.eslintrc.js', inputs.plugin-key)) != '') }}
         run: |

README.md

@@ -10,10 +10,11 @@ This workflow will execute the following actions as long as they are available o
 | PHP CodeSniffer | [squizlabs/php_codesniffer](https://packagist.org/packages/squizlabs/php_codesniffer) | `.phpcs.xml` |
 | PHP-CS-Fixer | [friendsofphp/php-cs-fixer](https://packagist.org/packages/friendsofphp/php-cs-fixer) | `.php-cs-fixer.php` |
 | PHPStan | [phpstan/phpstan](https://packagist.org/packages/phpstan/phpstan) | `phpstan.neon` |
+| Psalm | none, GLPI provides it | `psalm.xml` |
 | ESLint | [eslint](https://www.npmjs.com/package/eslint) | `eslint.config.js` or `eslint.config.mjs` or `eslint.config.cjs` or `.eslintrc.js` |
 | Stylelint | [stylelint](https://www.npmjs.com/package/stylelint) | `.stylelintrc.js` |
 | Licence headers check | [glpi-project/tools](https://packagist.org/packages/glpi-project/tools) | `tools/HEADER` |
-| PHPUnit | [phpunit/phpunit](https://packagist.org/packages/phpunit/phpunit) | `phpunit.xml` |
+| PHPUnit | none, GLPI provides it | `phpunit.xml` |
 | Jest | [jest](https://www.npmjs.com/package/jest) | `jest.config.js` |
 | TwigCS | [friendsoftwig/twigcs](https://github.com/friendsoftwig/twigcs) | `.twig_cs.dist.php` |