**Apache Airflow version**: 1.10.*
**BackPort Packages version**: 2020.10.5rc1

**What happened**:

`BigQueryInsertJobOperator` tries to start a BigQuery job by specifying a job_id which is a combination of `dag_id`, `task_id`, `execution_date` and an additional `uniqueness_suffix`.

https://github.com/apache/airflow/blob/master/airflow/providers/google/cloud/operators/bigquery.py#L2072

However, because BigQuery only accepts alphanumeric (in additon to dashes and underscore) characters then, if a DagID contains a version number whcih includes a `.` character then this will cause the task to fail.

https://cloud.google.com/bigquery/docs/running-jobs#generate-jobid

**How to reproduce it**:
Create a DAG with the name `my-dag-v1.0`.
airflow/providers/google/cloud/hooks/bigquery.py
self,
        job_id: str,
        project_id: Optional[str] = None,
        location: Optional[str] = None,
        retry: Retry = DEFAULT_RETRY,
    ) -> bool:
        """
        Check if jobs completed.
        :param job_id: id of the job.
        :type job_id: str
        :param project_id: Google Cloud Project where the job is running
        :type project_id: str
        :param location: location the job is running
        :type location: str
        :param retry: How to retry the RPC.
        :type retry: google.api_core.retry.Retry
        :r
        """
        location = location or self.location
        job = self.get_client(project_id=project_id, location=location).get_job(job_id=job_id)
        return job.done(retry=retry)
    def cancel_query(self) -> None: