Fix deprecated warning implicit conversion from float (#20083)

[skepticspriggan]

Q	A
Is bugfix?	✔️
New feature?	❌
Breaks BC?	❌
Fixed issues	20083

[what-the-diff]

PR Summary

• Deprecated Warning Fix
  A bug fix was added to address a warning about a deprecated coding practice in the float conversion. This ensures the smooth operation of our code and removes potentially confusing warnings for developers.

• Typecasting Update in Formatter
  Updates were made in Formatter.php to explicitly convert certain data to integers during a method called setTimestamp. This helps in maintaining accuracy and precision in our time-related functions.

• Test Assertion Addition in FormatterDateTest
  For heightened reliability of our duration functions, a new test assertion has been added in FormatterDateTest.php. This specifically checks the asDuration method when it is given a float value, helping us catch potential issues earlier in the development process.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 64.82%. Comparing base (97ca1f2) to head (407f742).

Additional details and impacted files

@@            Coverage Diff            @@
##             master   #20144   +/-   ##
=========================================
  Coverage     64.82%   64.82%           
  Complexity    11376    11376           
=========================================
  Files           429      429           
  Lines         37074    37074           
=========================================
  Hits          24034    24034           
  Misses        13040    13040           

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[samdark]

Thank you!