fix(all): Bump excon to 1.5.0 to address GHSA-48rx-c7pg-q66r

[ekjotmultani]

• PR conforms to Pull Request guidelines.

Issue #, if available:

Dependabot alert: https://github.com/aws-amplify/amplify-ui-android/security/dependabot/14

Description of changes:

Bumps the excon gem from 0.112.0 to 1.5.0 to fix GHSA-48rx-c7pg-q66r (moderate severity).

The vulnerability affects excon versions < 1.5.0. Since fastlane 2.235.0 constrained excon to < 1.0.0, this PR also updates fastlane from 2.235.0 to 2.237.0 (which relaxes the constraint to < 2.0.0), allowing bundler to resolve excon 1.5.0.

Changes are scoped to scripts/Gemfile and scripts/Gemfile.lock only.

How did you test these changes?

• bundle check passes with the updated lockfile
• bundle update excon fastlane resolved cleanly via bundler (no manual lockfile edits)
• Verified excon 1.5.0 is pinned in the resulting lockfile

Documentation update required?

• No

General Checklist

• Added Unit Tests
• Added Integration Tests
• Security oriented best practices and standards are followed (e.g. using input sanitization, principle of least privilege, etc)
• Ensure commit message has the appropriate scope (e.g fix(liveness): message, fix(authenticator): message, fix(all): message)

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 37.20%. Comparing base (99f8717) to head (509504a).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #325      +/-   ##
==========================================
- Coverage   37.22%   37.20%   -0.02%     
==========================================
  Files         123      123              
  Lines        5013     5013              
  Branches      705      705              
==========================================
- Hits         1866     1865       -1     
  Misses       2955     2955              
- Partials      192      193       +1     

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