21 screenshot

[philipnorton42]

Addresses #21

• 21: Updated the minimum PHP version to 8.2.
• 21: Updated the Url class to include the port, a url rebuild method to reconstruct the normalised url, and a hash method to turn the url into a string.
• 21: Adding the screenshot data to the results object so that the raw file data can be passed back upstream.
• 21: Fixed a phpstan issue in the sitemap checker command.
• 21: Added the ability for the chrome crawler class to save screenshots. Added a trait so that this functionality could be applied to other classes if needed. Made a rudementary 'can i take screenshot' check on the root CrawlerBase class to take the guesswork out of if this or that crawler has the ability to take screenshots. The chrome interface allows for files and data to be extracted from the page, so this allows for both, saving the file using a hash of the url and sending the file data to the results object.
• 21: Added an example of using the chrome crawler to take a screenshot of a web page.
• 21: Updated composer libraries to cover third party security problems.
• 21: Required packages require PHP8.4 so increasing the minimum php version to 8.4.
• 21: Fixing the github workflow by adding php 8.4.
• 21: Adding checkout step to the github workflow.