RUM-16634: Add wildcard host pattern matching to WebViewTracking

[kikoveiga]

What does this PR do?

• Adds a new WebViewTracking.enableWithPatterns API that accepts wildcard host patterns (e.g., "*.example.com, "preview-*.shopist.io") in addition to plain hosts. Patterns are validated on our side and then transmitted to the Browser SDK through the existing getAllowedWebViewHosts() bridge.
• Adds a HostPatternValidator to dd-sdk-android-core which handles validating and normalizing wildcard patterns. It lives in the core so the incoming first-party-hosts widlcard matching work can reuse it.

Motivation

Customers weren't able to easily enumerate hostnames loaded in a WebView such as ephemeral preview URLs, multi-tenant subdomains.

Additional Notes

iOS PR: DataDog/dd-sdk-ios#2963
Broswer PR: DataDog/browser-sdk#4703

Review checklist (to be filled by reviewers)

• Feature or bugfix MUST have appropriate tests (unit, integration, e2e)
• Make sure you discussed the feature or bugfix with the maintaining team in an Issue
• Make sure each commit and the PR mention the Issue number (cf the CONTRIBUTING doc)

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Codecov Report

❌ Patch coverage is 97.91667% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 72.43%. Comparing base (bc840ec) to head (ec19467).

Files with missing lines	Patch %	Lines
...lin/com/datadog/android/webview/WebViewTracking.kt	95.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #3540      +/-   ##
===========================================
+ Coverage    72.40%   72.43%   +0.03%     
===========================================
  Files          967      968       +1     
  Lines        35717    35762      +45     
  Branches      5967     5970       +3     
===========================================
+ Hits         25858    25902      +44     
+ Misses        8200     8198       -2     
- Partials      1659     1662       +3     

Files with missing lines	Coverage Δ
...android/core/configuration/HostPatternValidator.kt	100.00% <100.00%> (ø)
...dog/android/webview/internal/DatadogEventBridge.kt	100.00% <100.00%> (ø)
...lin/com/datadog/android/webview/WebViewTracking.kt	85.82% <95.00%> (+1.39%)	⬆️

... and 36 files with indirect coverage changes

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