Fix activeNetworkInfo Deprecation

[anandwana001]

Fixes #2967

Parent Ticket #2338

This PR fixes the activeNetworkInfo deprecation by using activeNetwork

@shobhitagarwal1612 PTAL?

[shobhitagarwal1612]

Can you please add details on how you verified that no regressions are introduced with this change?

[anandwana001]

Can you please add details on how you verified that no regressions are introduced with this change?

Manul testing, should we create a separate ticket for unit test network manager class?

[shobhitagarwal1612]

Some tests are failing, can you please look into it?

[codecov]

Codecov Report

Attention: Patch coverage is 85.71429% with 1 line in your changes missing coverage. Please review.

Project coverage is 63.55%. Comparing base (0280bf5) to head (be8d16f).
Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
...com/google/android/ground/system/NetworkManager.kt	85.71%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #2968      +/-   ##
============================================
+ Coverage     63.53%   63.55%   +0.02%     
  Complexity     1242     1242              
============================================
  Files           267      267              
  Lines          6502     6506       +4     
  Branches        911      911              
============================================
+ Hits           4131     4135       +4     
  Misses         1785     1785              
  Partials        586      586              

Files with missing lines	Coverage Δ
...com/google/android/ground/system/NetworkManager.kt	52.00% <85.71%> (+9.14%)	⬆️