[FLINK-39836][runtime-web] Add missing License Header to .eslintrc.js and .stylelintrc.js in web-dashboard

[RocMarshal]

What is the purpose of the change

[FLINK-39836][runtime-web] Add missing License Header to .eslintrc.js and .stylelintrc.js in web-dashboard

Brief change log

[FLINK-39836][runtime-web] Add missing License Header to .eslintrc.js and .stylelintrc.js in web-dashboard

Verifying this change

N.A

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

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

Documentation

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

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Was generative AI tooling used to co-author this PR?

• Yes (please specify the tool below)

[flinkbot]

CI report:

• 68ac1f9 Azure: FAILURE

Bot commands

The @flinkbot bot supports the following commands:

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

[spuru9]

Did cross-checked once with the excluded list and adding license make more sense here so, LGTM. Thanks.

[alpinegizmo]

LGTM

Thank you for taking care of this!

[lihaosky]

LGTM!