[FLINK-26291][connectors/firehose] Changed integration test from asse…

[CrynetLogistics]

…rting exactly once to at least once..

What is the purpose of the change

To fix integration test in master build. Asserting at least once rather than exactly once in case Localstack failures cause retries.

Brief change log

Removed assertion that the number written = number want to write.

Does this pull request potentially affect one of the following parts:

• Dependencies (does it add or upgrade a dependency): (yes / no)n
• The public API, i.e., is any changed class annotated with @Public(Evolving): (yes / no)n
• The serializers: (yes / no / don't know)n
• The runtime per-record code paths (performance sensitive): (yes / no / don't know)n
• Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Kubernetes/Yarn, ZooKeeper: (yes / no / don't know)n
• The S3 file system connector: (yes / no / don't know)n

Documentation

• Does this pull request introduce a new feature? (yes / no)n
• If yes, how is the feature documented? (not applicable / docs / JavaDocs / not documented)n

[CrynetLogistics]

@flinkbot run azure

[flinkbot]

Thanks a lot for your contribution to the Apache Flink project. I'm the @flinkbot. I help the community
to review your pull request. We will use this comment to track the progress of the review.

Automated Checks

Last check on commit 126293a (Tue Feb 22 19:07:11 UTC 2022)

Warnings:

• No documentation files were touched! Remember to keep the Flink docs up to date!

_{Mention the bot in a comment to re-run the automated checks.}

Review Progress

• ❓ 1. The [description] looks good.
• ❓ 2. There is [consensus] that the contribution should go into to Flink.
• ❓ 3. Needs [attention] from.
• ❓ 4. The change fits into the overall [architecture].
• ❓ 5. Overall code [quality] is good.

Please see the Pull Request Review Guide for a full explanation of the review process.

Details

The Bot is tracking the review progress through labels. Labels are applied according to the order of the review items. For consensus, approval by a Flink committer of PMC member is required

Bot commands

The @flinkbot bot supports the following commands:

• @flinkbot approve description to approve one or more aspects (aspects: description, consensus, architecture and quality)
• @flinkbot approve all to approve all aspects
• @flinkbot approve-until architecture to approve everything until architecture
• @flinkbot attention @username1 [@username2 ..] to require somebody's attention
• @flinkbot disapprove architecture to remove an approval you gave earlier

[flinkbot]

CI report:

• 437b7de Azure: SUCCESS

Bot commands

The @flinkbot bot supports the following commands:

• @flinkbot run azure re-run the last Azure build

[dannycranmer]

Duplicated by #18876