Fixed CTs: gitea,nextcloud,transfersh and updated the AlpinePHPTool

CT: gitea
  Fixed broken curl command for downloading gitea

CT: nextcloud
  Forced PHP Version to 8.3 using update AlpinePHPTool

CT: transfersh
  Fixed custom theme by downloading the release tar.gz instead of cloneing the repo,
  it is now also added to the update script

Script: AlpinePHPTool
  Added ability to specify a PHP Version

.gitignore

@@ -3,6 +3,8 @@
 *.tar
 *.zip
 *.sh.kate-swp
+*.squashfs
+*.qcow2
 /distrobuilder
 /bin
 CT-Files/nginx/nginx_signing.rsa.pub