Upgrade symfony to 5.3.12

[akondas]

No description provided.

[codecov]

Codecov Report

Merging #524 (8c86eb8) into master (11b2b56) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master     #524   +/-   ##
=========================================
  Coverage     99.32%   99.32%           
  Complexity     1884     1884           
=========================================
  Files           300      300           
  Lines          5970     5970           
=========================================
  Hits           5930     5930           
  Misses           40       40           

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