fix(ci): target selected Google Play track

[sjungwon03]

Summary

Corrects the Google Play upload action configuration so dispatching with internal targets the selected track rather than the action default. Removes changesNotSentForReview because this Play Console app uses automatic review submission.

Closes #190

Validation

• npm run typecheck (CI)
• npm test (CI)
• npm run build (CI)
• Manual validation: workflow YAML parsed and git diff --check passed.

Checklist

• This pull request targets dev.
• I created or linked a GitHub issue for this change.
• I used a Conventional Commit message.
• I added or updated tests, or explained why tests are not applicable. (Workflow-input correction only; CI covers the repository build.)
• I updated documentation where behavior or setup changed. (No documentation change is needed: the release guide already describes selecting the Play track at dispatch.)
• I did not include secrets, private media, private file paths, credentials, or security exploit material.

Notes for reviewers

The earlier attempt created a Play edit but its commit was rejected, so no release was published. This correction keeps the upload on the explicitly selected internal track and follows the Play Console automatic-review policy.

[sjungwon03-ai]

This change correctly switches the Google Play upload action parameter from the incorrect tracks (plural) to the proper track (singular) input for r0adkll/upload-google-play, and removes the unsupported changesNotSentForReview flag. The fix aligns with the action's documented inputs and the PR title. No blockers identified.

Inline notes on the diff:

• Line ~91: track: ${{ inputs.track }} — correct parameter name.
• Removed changesNotSentForReview: true — not a valid input for this action version.