fix(blooms): Copy chunks from ForSeries

[salvacorts]

What this PR does / why we need it:

We saw the following errors when using the split_by_series_chunks_size strategy:

ts=2024-11-11T13:49:22.314294574Z caller=spanlogger.go:116 user=fake level=error msg="failed downloading chunks" err="failed to load chunk '29/70e445e35a08d865/19312b76db3:1931326dfdf:141bf2e0': failed to get s3 object: NoSuchKey: ..."

Arguments for ForSeries callback should be captured as the chunks slice is reused on every call.

loki/pkg/storage/stores/shipper/indexshipper/tsdb/single_file_index.go

Lines 168 to 169 in 18cef21

	chks := ChunkMetasPool.Get()
	defer ChunkMetasPool.Put(chks)

Checklist

• Reviewed the CONTRIBUTING.md guide (required)
• Documentation added
• Tests updated
• Title matches the required conventional commits format, see here
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