Antalya 26.6 Backport of #111997 - Do not marshal blocks of a local shard plan in a distributed query

[mkmkme]

Changelog category (leave one):

• Bug Fix (user-visible misbehavior in an official stable release)

Changelog entry (a user-readable short description of the changes that goes to CHANGELOG.md):

Fixed Expected UInt64 column for __grouping_set, got BLOB and ColumnBLOB should be converted to a regular column before usage logical errors on a distributed query executed on a shard with enable_parallel_blocks_marshalling (enabled by default), for example with GROUP BY GROUPING SETS over a cluster that has a local replica, or when reading a Merge table that spans a local and a distributed table. BlocksMarshallingStep is no longer added to plans whose blocks are consumed in the same process (ClickHouse#111997 by @groeneai)

Documentation entry for user-facing changes

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CI/CD Options

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[github-actions]

Workflow [PR], commit [682a414]