fix: Relax android package name validation

[tenhobi]

Fixes #368

Description

Relax conditions for android package name validations

Type of Change

• ✨ feat -- New feature (non-breaking change which adds functionality)
• 🛠️ fix -- Bug fix (non-breaking change which fixes an issue)
• ❌ ! -- Breaking change (fix or feature that would cause existing functionality to change)
• 🧹 refactor -- Code refactor
• ✅ ci -- Build configuration change
• 📝 docs -- Documentation
• 🗑️ chore -- Chore

[CLAassistant]

All committers have signed the CLA.

[russellwheatley]

@tenhobi - nice! Didn't realise you'd created a PR.

I ran unit tests locally as CI will fail with forks:

4 packages have newer versions incompatible with dependency constraints.
Try `dart pub outdated` for more information.
00:00 +0: loading test/unit_test.dart
00:00 +0: test/unit_test.dart: Apple App Bundle ID Validator Valid bundle IDs
00:00 +1: test/unit_test.dart: Apple App Bundle ID Validator Invalid bundle IDs
00:00 +2: test/unit_test.dart: Android Package Name Validator Valid Package names
00:00 +3: test/unit_test.dart: Android Package Name Validator Invalid Package names
00:00 +4: test/unit_test.dart: Firebase CLI JSON response parser function `firebaseCLIJsonParse()` Valid JSON response from Firebase CLI
00:00 +5: test/unit_test.dart: Firebase CLI JSON response parser function `firebaseCLIJsonParse()` Invalid JSON response from Firebase CLI
00:00 +6: All tests passed!
flutterfire_cli: SUCCESS
---------------------------------------------------------------------------------------------------------------------------------------

$ melos exec
  └> dart pub get && dart run test --reporter expanded
     └> SUCCESS

melos run test
  └> melos exec --ignore="flutterfire_starter_hooks" --concurrency=1 -- "dart pub get && dart run test --reporter expanded"
     └> SUCCESS