CI: Fix false negatives by the labeler

[akihironitta]

What does this PR do?

Resolves false negatives.

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The important doc section I missed previously is:

One or both fields can be provided for fine-grained matching. Unlike the top-level list, the list of path globs provided to any and all must ALL match against a path for the label to be applied.

The fields are defined as follows:

• any: match ALL globs against ANY changed path
• all: match ALL globs against ALL changed paths

https://github.com/actions/labeler/blob/main/README.md#match-object

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Does your PR introduce any breaking changes? If yes, please list them.

None

Before submitting

• [n/a] Was this discussed/approved via a GitHub issue? (not for typos and docs)
• Did you read the contributor guideline, Pull Request section?
• Did you make sure your PR does only one thing, instead of bundling different changes together?
• [n/a] Did you make sure to update the documentation with your changes? (if necessary)
• [n/a] Did you write any new necessary tests? (not for typos and docs)
• [n/a] Did you verify new and existing tests pass locally with your changes?
• Did you list all the breaking changes introduced by this pull request?
• Did you update the CHANGELOG? (not for typos, docs, test updates, or minor internal changes/refactors)

PR review

Anyone in the community is welcome to review the PR.
Before you start reviewing, make sure you have read the review guidelines. In short, see the following bullet-list:

• Is this pull request ready for review? (if not, please submit in draft mode)
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Additional context

Tried a number of experiments in my fork with GHA debug enabled:

• my pr: Investigate issues with labeler akihironitta/pytorch-lightning#25
• my fork master: akihironitta@9b4ec72

so, I'm pretty confident it'll work as we expect this time.

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Still not sure why the bot removes the existing labels. actions/labeler#404

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cc @carmocca @akihironitta @Borda

[rohitgr7]

FP or FN? different in title and description