Update dependency boltons to v26

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
boltons	>=21.0,<25.1 → >=26,<27

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Release Notes

mahmoud/boltons (boltons)

v26.0.0

Compare Source

(June 19, 2026)

• Added [funcutils.once][funcutils.once] decorator for one-time function execution
• Added [strutils.human_readable_list][strutils.human_readable_list] for formatting lists as human-readable strings
• Extended [iterutils.partition][iterutils.partition] to accept multiple predicates
• Added cache option to [iterutils.remap][iterutils.remap] and [iterutils.research][iterutils.research]
• Fixed [iterutils.split][iterutils.split] maxsplit=0 wrapping source object instead of its values
• Fixed [listutils.BarrelList][listutils.BarrelList] insert() raising IndexError on large negative indices (now clamps like built-in list)
• Fixed [listutils.BarrelList][listutils.BarrelList] sort() with multiple internal lists
• Fixed [dictutils.OrderedMultiDict][dictutils.OrderedMultiDict] equality comparison against plain mappings
• Fixed [strutils.bytes2human][strutils.bytes2human] rollover at exact powers of 1024
• Fixed [tbutils.ParsedException.from_string][tbutils.ParsedException] IndexError on truncated tracebacks
• Fixed [tableutils.Table.to_text][tableutils.Table] column sizing
• Fixed [strutils.html2text][strutils.html2text] handling
• Added Python 3.14 support

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