[FLINK-11690][runtime] Use configured RPC timeout in MiniCluster

[zentol]

What is the purpose of the change

The MiniCluster uses a fixed timeout of 10 seconds instead of the timeout defined in the given MiniClusterConfiguration. This PR changes the constructor to respect the configured RPC timeout.

[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.

Review Progress

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

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

Bot commands

The @flinkbot bot supports the following commands:

• @flinkbot approve description to approve the 1st aspect (similarly, it also supports the consensus, architecture and quality keywords)
• @flinkbot approve all to approve all aspects
• @flinkbot attention @username1 [@username2 ..] to require somebody's attention
• @flinkbot disapprove architecture to remove an approval

[tillrohrmann]

Thanks for this fix @zentol. +1 for merging.

[tillrohrmann]

@flinkbot approve all