[FLINK-30719] Update frontend-maven-plugin from 1.12.1 to 1.15.1

[snuyanzin]

What is the purpose of the change

There was a fix on frontend-maven-plugin eirslett/frontend-maven-plugin@e2d0445
which should help with corrupted file issue FLINK-30719

Brief change log

pom.xml

Verifying this change

This change is a trivial rework / code cleanup without any test coverage.

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

• Dependencies (does it add or upgrade a dependency): (yes )
• The public API, i.e., is any changed class annotated with @Public(Evolving): ( no)
• The serializers: ( no )
• The runtime per-record code paths (performance sensitive): ( no)
• Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Kubernetes/Yarn, ZooKeeper: ( no)
• The S3 file system connector: ( no)

Documentation

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

[flinkbot]

CI report:

• 487cb07 Azure: SUCCESS

Bot commands

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

[snuyanzin]

@reswqa , @leonardBang can you have a look here please
since you also were involved FLINK-30719

[leonardBang]

Thanks @snuyanzin for the fix, LGTM

Minor proposal for commit message:
[FLINK-30719][web] Update frontend-maven-plugin from 1.12.1 to 1.15.1 to make sure download files fully before write to disk

[snuyanzin]

Failure is related to FLINK-37373
to double check it I added a revert commit for the one which was a reason of failure (there is a separate PR for that which I'm going to merge first in case of success)
#26198