spm support via google_maps_flutter_ios_sdk9

[qeepcologne]

change depdendency to google_maps_flutter_ios_sdk9 to support swift package manager.
requires ios15.

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[gemini-code-assist]

Code Review

This pull request updates the google_maps_flutter package to use google_maps_flutter_ios_sdk9 as the default iOS implementation. The reviewer noted that this change increases the minimum iOS requirement and requires a major version bump to comply with semantic versioning. Additionally, the trailing newline in pubspec.yaml should be restored for style consistency.

[gemini-code-assist]

Switching the default iOS implementation to google_maps_flutter_ios_sdk9 is a breaking change because it increases the minimum iOS requirement to 15 (as noted in the PR description). According to the repository's contribution guidelines regarding semantic versioning, this change requires a major version bump for the google_maps_flutter package to avoid breaking existing users on older iOS versions.

References

1. The flutter/packages contribution guide (referenced in the repository style guide) requires following semantic versioning, which mandates a major version bump for breaking changes such as increasing minimum platform requirements. ^(link)

[gemini-code-assist]

The trailing newline at the end of the file has been removed. It is a best practice to maintain a single newline at the end of files to ensure compatibility with POSIX tools and to avoid unnecessary diff noise in future changes.

  - /example/web/index.html

References

1. Code should follow relevant style guides and use the correct auto-formatter, which typically enforces a trailing newline at the end of the file. ^(link)

[stuartmorgan-g]

Thanks for the contribution, but PRs need to follow our process. If you are interested in contributing, please open a new PR that follows the PR checklist instead of removing it.