Block tree-sitter >= 0.22.0, we depend on a removed API

pyproject.toml

@@ -39,7 +39,7 @@ testing = {file = ["requirements.txt", "requirements-swh.txt", "requirements-tes
 "Source" = "https://gitlab.softwareheritage.org/swh/devel/swh-search.git"
 
 [build-system]
-requires = ["setuptools", "setuptools-scm", "wheel", "tree_sitter"]
+requires = ["setuptools", "setuptools-scm", "wheel", "tree_sitter<0.22.0"]
 build-backend = "setuptools.build_meta"
 
 [tool.setuptools_scm]

requirements.txt

@@ -4,5 +4,5 @@
 click
 elasticsearch>=7.0.0,<8.0.0
 typing-extensions
-tree_sitter
+tree_sitter<0.22.0  # TODO: stop using removed Language.build_language API https://github.com/tree-sitter/py-tree-sitter/commit/681fc558dabdad8717f92eb2ccc0b33c5ce25c96#diff-b335630551682c19a781afebcf4d07bf978fb1f8ac04c6bf87428ed5106870f5
 iso8601