Update dependency com.google.firebase:firebase-bom to v31.4.0

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
com.google.firebase:firebase-bom	31.2.0 -> 31.4.0

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APK Size: 2.03 MB

[codecov[bot]]

Codecov Report

Merging #320 (17dd1f7) into main (d6c3c30) will not change coverage. The diff coverage is n/a.

:exclamation: Current head 17dd1f7 differs from pull request most recent head b5a5816. Consider uploading reports for the commit b5a5816 to get more accurate results

@@            Coverage Diff            @@
##               main     #320   +/-   ##
=========================================
  Coverage     54.84%   54.84%           
  Complexity      117      117           
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  Files           104      104           
  Lines          1732     1732           
  Branches        239      239           
=========================================
  Hits            950      950           
  Misses          672      672           
  Partials        110      110           

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