Update omniauth-auth0 rubygem to 3.1
What does this MR do and why?
Update omniauth-auth0 gem to 3.1 for ruby 3.0+ support (tests fail with newer rubies) https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1019641
Closes: #396930 (closed)
MR acceptance checklist
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