Close connections after every async job that uses the db

[acelaya]

Closes #2341

Decorate UpdateGeoLiteDb and SendVisitToMatomo with the CloseDbConnectionEventListener.

That ensures any database connection opened for them is closed afterwards, which is specially important for the geolite one, as it runs for every single visit.

This job didn't use to interact with the database before Shlink 4.4, so it was intentionally not decorated.

SendVisitToMatomo has always interacted with the database, it was just overlooked, but anyone not using this feature would not notice it.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 93.75%. Comparing base (1549509) to head (3372a2a).
Report is 3 commits behind head on develop.

Additional details and impacted files

@@            Coverage Diff             @@
##             develop    #2342   +/-   ##
==========================================
  Coverage      93.75%   93.75%           
  Complexity      1696     1696           
==========================================
  Files            276      276           
  Lines           5873     5873           
==========================================
  Hits            5506     5506           
  Misses           367      367           

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