bump: Update STA to v0.9.0

[mzaniolo]

Bump Synapse-token-authenticator to v0.9.0

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 78.66%. Comparing base (401b785) to head (2735c4a).
Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master      #20   +/-   ##
=======================================
  Coverage   78.66%   78.66%           
=======================================
  Files         472      472           
  Lines       67488    67488           
  Branches    10367    10367           
=======================================
+ Hits        53089    53091    +2     
+ Misses      10894    10893    -1     
+ Partials     3505     3504    -1     

see 1 file with indirect coverage changes

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