This patch adds a try-catch around the rolesClaim extraction to prevent
full crashes of HedgeDoc when a user profile is read, that doesn't
contain any such claim, which can happen with some IdPs, like Keycloak,
that omit the attribute when it's empty.
As a result an authorized user would crash the entire server, which is
definitely unintended behaviour. The simply try-catch should resolve the
issue and make sure that roles is always defined even if the
`extractProfileAttribute` call fails.
Signed-off-by: Sheogorath <sheogorath@shivering-isles.com>
1f1b2bd386