Upgrade garminconnect to v0.2.34

[federicopellegatta]

This PR updates project dependencies to their latest versions, with a particular focus on the garminconnect library. Additionally, it removes deprecated methods from GarminClient that are now part of the upstream Garmin class in the new library version.

Changes

• Upgraded garminconnect from v0.2.30 to v0.2.34.
• Removed the following methods from GarminClient, because they are now implemented in the upstream Garmin class (which GarminClient extends);

  def get_training_plan_by_id(self, training_plan_id: int) -> dict[str, Any]:
      """Returns training plan by id"""
      url = f"/trainingplan-service/trainingplan/phased/{training_plan_id}"
      return self.connectapi(url)
  
  def get_scheduled_workout_by_id(self, scheduled_workout_id: int) -> dict[str, Any]:
      """Returns scheduled workout by id"""
      url = f"/workout-service/schedule/{scheduled_workout_id}"
      return self.connectapi(url)

• Updated any other outdated dependencies to their latest compatible versions.

Tests

• Existing unit and integration tests verified to pass with updated dependencies.
• Confirmed that removed methods are available via the Garmin base class where needed.