v21.05.4-ls152

LinuxServer Changes:

Rebase to Alpine 3.14.

bookstack Changes:

Links

• Update instructions

Full List of Changes

This release contains the following fixes and changes:

• Added VB.NET code block highlighting option. (#2869)
• Improved audit log user select list stability. (#2863)
• Fixed issue where user profile pages item "View All" links used ids hence did not link to proper searches. (#2857)