af: Update auth0_flutter_platform_interface package to v1.3.0

[Widcket]

• All new/changed/fixed functionality is covered by tests (or N/A)
• I have added documentation for all new/changed functionality (or N/A)

📋 Changes

This PR updates the auth0_flutter_platform_interface dependency to v1.3.0 in the app-facing package (auth0_flutter).

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (253209a) 96.08% compared to head (e199536) 90.44%.
Report is 12 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff              @@
##               main     #327      +/-   ##
============================================
- Coverage     96.08%   90.44%   -5.65%     
============================================
  Files            97       48      -49     
  Lines          1611      471    -1140     
  Branches        331        0     -331     
============================================
- Hits           1548      426    -1122     
+ Misses           49       45       -4     
+ Partials         14        0      -14     

Flag	Coverage Δ
auth0_flutter	100.00% <ø> (ø)
auth0_flutter_android	?
auth0_flutter_ios	?
auth0_flutter_platform_interface	87.03% <ø> (ø)

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see 49 files with indirect coverage changes

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