Fix CI

[vincentchalamon]

• update ci to Symfony 6.2.*
• update ci to PHP 8.2
• drop PHP 7.4 from ci (not officially supported anymore)
• add GitHub Actions concurrency

[coveralls]

Pull Request Test Coverage Report for Build 5186347988

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.07%) to 74.324%

---

Totals
Change from base Build 4104338853:	0.07%
Covered Lines:	770
Relevant Lines:	1036

---

💛 - Coveralls

[codecov]

Codecov Report

Merging #133 (6d0b32e) into main (ad8fa7d) will increase coverage by 0.05%.
The diff coverage is n/a.

❗ Current head 6d0b32e differs from pull request most recent head da9f54d. Consider uploading reports for the commit da9f54d to get more accurate results

@@             Coverage Diff              @@
##               main     #133      +/-   ##
============================================
+ Coverage     70.25%   70.30%   +0.05%     
  Complexity      262      262              
============================================
  Files            42       41       -1     
  Lines          1200     1199       -1     
============================================
  Hits            843      843              
+ Misses          357      356       -1     

Flag	Coverage Δ
phpunit	70.30% <ø> (+0.05%)	⬆️

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see 1 file with indirect coverage changes

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