build(deps): bump importlib-metadata from 4.13.0 to 6.1.0

Bumps [importlib-metadata](https://github.com/python/importlib_metadata) from 4.13.0 to 6.1.0.
- [Release notes](https://github.com/python/importlib_metadata/releases)
- [Changelog](https://github.com/python/importlib_metadata/blob/main/CHANGES.rst)
- [Commits](python/importlib_metadata@v4.13.0...v6.1.0)

---
updated-dependencies:
- dependency-name: importlib-metadata
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

poetry.lock

@@ -42,7 +42,7 @@ rdfgraphisomorphism = 'rdflib.tools.graphisomorphism:main'
 python = "^3.7"
 isodate = "^0.6.0"
 pyparsing = ">=2.1.0,<4"
-importlib-metadata = {version = "^4.0.0", python = ">=3.7,<3.8"}
+importlib-metadata = {version = ">=4,<7", python = ">=3.7,<3.8"}
 berkeleydb = {version = "^18.1.0", optional = true}
 networkx = {version = "^2.0.0", optional = true}
 html5lib = {version = "^1.0", optional = true}