chore(deps): update dependency pygit2 to <1.15.2

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
pygit2 (changelog)	<1.15.0 -> <1.15.2

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Release Notes

libgit2/pygit2 (pygit2)

v1.15.1

Compare Source

• New Repository.revert(...)
  #​1297

• New optional depth argument in submodules add() and update() methods
  #​1296

• Now Submodule.url returns None when the submodule does not have a url
  #​1294

• Fix use after free bug in error reporting
  #​1299

• Fix Submodule.head_id when the submodule is not in the current HEAD tree
  #​1300

• Fix Submodule.open() when subclassing Repository
  #​1295

• Fix error in the test suite when running with address sanitizer
  #​1304
  #​1301

• Annotations and documentation fixes
  #​1293

v1.15.0

Compare Source

• Many deprecated features have been removed, see below

• Upgrade to libgit2 v1.8.1

• New push_options optional argument in Repository.push(...)
  #​1282

• New support comparison of Oid with text string

• Fix CheckoutNotify.IGNORED
  #​1288

• Use default error handler when decoding/encoding paths
  #​537

• Remove setuptools runtime dependency
  #​1281

• Coding style with ruff
  #​1280

• Add wheels for ppc64le
  #​1279

• Fix tests on EPEL8 builds for s390x
  #​1283

Deprecations:

• Deprecate IndexEntry.hex, use str(IndexEntry.id)

Breaking changes:

• Remove deprecated oid.hex, use str(oid)

• Remove deprecated object.hex, use str(object.id)

• Remove deprecated object.oid, use object.id

• Remove deprecated Repository.add_submodule(...), use Repository.submodules.add(...)

• Remove deprecated Repository.lookup_submodule(...), use Repository.submodules[...]

• Remove deprecated Repository.init_submodules(...), use Repository.submodules.init(...)

• Remove deprecated Repository.update_submodule(...), use Repository.submodules.update(...)

• Remove deprecated constants GIT_OBJ_XXX, use ObjectType

• Remove deprecated constants GIT_REVPARSE_XXX, use RevSpecFlag

• Remove deprecated constants GIT_REF_XXX, use ReferenceType

• Remove deprecated ReferenceType.OID, use instead ReferenceType.DIRECT

• Remove deprecated ReferenceType.LISTALL, use instead ReferenceType.ALL

• Remove deprecated support for passing dicts to repository's merge(...),
  merge_commits(...) and merge_trees(...). Instead pass MergeFlag for flags, and
  MergeFileFlag for file_flags.

• Remove deprecated support for passing a string for the favor argument to repository's
  merge(...), merge_commits(...) and merge_trees(...). Instead pass MergeFavor.

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