Update syrupy requirement from >=4.6 to >=5.1.0

[dependabot]

Updates the requirements on syrupy to permit the latest version.

Release notes

Sourced from syrupy's releases.

v5.1.0

5.1.0 (2026-01-25)

Features

• add serializer plugin system; plugins for data models (#1062) (df9bc8f)

Changelog

Sourced from syrupy's changelog.

5.1.0 (2026-01-25)

Features

• add serializer plugin system; plugins for data models (#1062) (df9bc8f)

5.0.0 (2025-09-28)

• Switch to MIT license (#945) (d74d340)

Bug Fixes

• Block terminal summary for xdist workers. (#978) (33a848d)
• ensure syrupy's pytest_assertrepr_compare hook is called first. (#984) (eb0024d)

Code Refactoring

• remove incorrect private underscore prefix from public methods (8cfc905)

Features

• add --snapshot-dirname option, close #810 (27135c7)
• drop support for py3.8, raise min. pytest to v8 (#904) (a879ff1)
• update min. python version to 3.10 (#1024) (16b4113)

BREAKING CHANGES

• The following methods have been renamed:

SnapshotCollectionStorage

• _read_snapshot_collection -> read_snapshot_collection
• _read_snapshot_data_from_location -> read_snapshot_data_from_location
• _write_snapshot_collection -> write_snapshot_collection
• _get_file_basename -> get_file_basename
• _file_extension -> file_extension

AmberDataSerializer

• _snapshot_sort_key -> snapshot_sort_key

Renamed constants to improve clarity:

constants

• SNAPSHOT_EMPTY_FOSSIL_KEY -> SNAPSHOT_EMPTY_COLLECTION_KEY
• SNAPSHOT_UNKNOWN_FOSSIL_KEY -> SNAPSHOT_UNKNOWN_COLLECTION_KEY

... (truncated)

Commits

• 7096efd chore(release): 5.1.0 [skip ci]
• 07aa00d chore(deps): update dependency attrs to v25 (#1063)
• 1f29ae0 docs: add bwrob as a contributor for code (#1064)
• df9bc8f feat: add serializer plugin system; plugins for data models (#1062)
• 841257d chore(deps): update dependency coverage to v7.13.1 (#1061)
• 2d8dfa7 chore(deps): update codecov/codecov-action action to v5.5.2 (#1056)
• f5f9ef7 chore(deps): update dependency debugpy to v1.8.18 (#1057)
• eaeb6ae chore(deps): update dependency pytest to v9.0.2 (#1055)
• 263b23b chore(deps): update python docker tag to v3.14.1 (#1054)
• a0dd77b chore(deps): update actions/checkout action to v6.0.1 (#1053)
• Additional commits viewable in compare view

[shbatm]

@dependabot rebase