### Apache Airflow version

2.7.0

### What happened

After upgrading to `apache-airflow-providers-amazon==8.5.1`, I am no longer able to view logs from previous run attempts. 

Airflow is able to find the log stream successfully, but there's no content viewable (even though there are logs in the actual streams):
```
REDACTED.us-west-2.compute.internal
*** Reading remote log from Cloudwatch log_group: REDACTED log_stream: dag_id=REDACTED/run_id=REDACTED/task_id=REDACTED/attempt=1.log.
```

I believe this issue occurred from #33231 -  Looking at the [CloudWatch Logs code](https://github.com/apache/airflow/blob/providers-amazon/8.5.1/airflow/providers/amazon/aws/log/cloudwatch_task_handler.py#L109-L133), I think `task_instance.start_date` and `task_instance.end_date` somehow refer to its __latest__ run, and so the log contents are getting filtered out on previous attempts.


### What you think should happen instead

_No response_

### How to reproduce

1. Configure environment with remote CloudWatch logging
2. Run task
3. Clear task and re-run
4. The logs for the first attempt now no longer show

### Operating System

Debian 11

### Versions of Apache Airflow Providers

apache-airflow-providers-amazon==8.5.1

### Deployment

Other

### Deployment details

_No response_

### Anything else

_No response_

### Are you willing to submit PR?

- [ ] Yes I am willing to submit a PR!

### Code of Conduct

- [X] I agree to follow this project's [Code of Conduct](https://github.com/apache/airflow/blob/main/CODE_OF_CONDUCT.md)

#
#
#
from __future__ import annotations
import time
from datetime import datetime as dt, timedelta
from unittest import mock
from unittest.mock import call
import boto3
import moto
import pytest
from watchtower import CloudWatchLogHandler
from airflow.models import DAG, DagRun, TaskInstance
from airflow.operators.empty import EmptyOperator
from airflow.providers.amazon.aws.hooks.logs import AwsLogsHook
from airflow.providers.amazon.aws.log.cloudwatch_task_handler import CloudwatchTaskHandler
from airflow.providers.amazon.aws.utils import datetime_to_epoch_utc_ms
from airflow.utils.session import create_session
from airflow.utils.state import State
from airflow.utils.timezone import datetime
from tests.test_utils.config import conf_vars
def get_time_str(time_in_milliseconds):
    dt_time = dt.utcfromtimestamp(time_in_milliseconds / 1000.0)
    return dt_time.strftime("%Y-%m-%d %H:%M:%S,000")
@pytest.fixture(autouse=True, scope="module")
def logmock():
    with moto.mock_logs():
        yield
class TestCloudwatchTaskHandler: