This commit adds a test case, which makes sure that the KDE framework
and plasma framework version are always the same.

Additional changes:
* APKBUILD parser parses the URL now (that's the best way I found to
  categorize the KDE aports in frameworks and other)
* Changed single quotes to double quotes in KDE APKBUILDs, so the
  parser doesn't include the single quotes in the parsed result
* Added the test case to the gitlab CI config