Flake in bigquery `job_samples` test

[coryan]

Commit: 9953b09

full error: the request exceeded the request deadline error sending request for url (https://bigquery.googleapis.com/bigquery/v2/projects/rust-sdk-testing/jobs?allUsers=false&maxResults=20&minCreationTime=0&pageToken=1788250336403-job_UPuqahsZZoeGKdC2Mvqj1ttsQGlJ&projection=0&parentJobId=&%24alt=json%3Benum-encoding%3Dint)
Caused by:
    0: error sending request for url (https://bigquery.googleapis.com/bigquery/v2/projects/rust-sdk-testing/jobs?allUsers=false&maxResults=20&minCreationTime=0&pageToken=1788250336403-job_UPuqahsZZoeGKdC2Mvqj1ttsQGlJ&projection=0&parentJobId=&%24alt=json%3Benum-encoding%3Dint)
    1: operation timed out
  because: Error { kind: Timeout, source: Some(reqwest::Error { kind: Request, url: "https://bigquery.googleapis.com/bigquery/v2/projects/rust-sdk-testing/jobs?allUsers=false&maxResults=20&minCreationTime=0&pageToken=1788250336403-job_UPuqahsZZoeGKdC2Mvqj1ttsQGlJ&projection=0&parentJobId=&%24alt=json%3Benum-encoding%3Dint", source: TimedOut }) }
  because: reqwest::Error { kind: Request, url: "https://bigquery.googleapis.com/bigquery/v2/projects/rust-sdk-testing/jobs?allUsers=false&maxResults=20&minCreationTime=0&pageToken=1788250336403-job_UPuqahsZZoeGKdC2Mvqj1ttsQGlJ&projection=0&parentJobId=&%24alt=json%3Benum-encoding%3Dint", source: TimedOut }
  because: TimedOut
Error: the request exceeded the request deadline error sending request for url (https://bigquery.googleapis.com/bigquery/v2/projects/rust-sdk-testing/jobs?allUsers=false&maxResults=20&minCreationTime=0&pageToken=1788250336403-job_UPuqahsZZoeGKdC2Mvqj1ttsQGlJ&projection=0&parentJobId=&%24alt=json%3Benum-encoding%3Dint)
Caused by:
    0: error sending request for url (https://bigquery.googleapis.com/bigquery/v2/projects/rust-sdk-testing/jobs?allUsers=false&maxResults=20&minCreationTime=0&pageToken=1788250336403-job_UPuqahsZZoeGKdC2Mvqj1ttsQGlJ&projection=0&parentJobId=&%24alt=json%3Benum-encoding%3Dint)
    1: operation timed out
failures:
    tests::job_samples

Originally posted by @dbolduc in #6670