v0.4.0

HerbSearch v0.4.0

Diff since v0.3.1

Merged pull requests:

• Add abstract layer to iterator hierarchy (#122) (@pwochner)
• CompatHelper: bump compat for HerbSpecification to 0.2, (keep existing compat) (#127) (@github-actions[bot])
• Small tweak for Julia 1.12 world age change (#128) (@Keno)
• Remove FixedShapedIterator (#131) (@THinnerichs)

Closed issues:

• Remove FixedShapeIterator (#130)