build(deps-dev): update flake8 requirement from ^6.1.0 to ^7.1.1 (#57)

Updates the requirements on [flake8](https://github.com/pycqa/flake8) to permit the latest version.
- [Commits](PyCQA/flake8@6.1.0...7.1.1)

---
updated-dependencies:
- dependency-name: flake8
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

pyproject.toml

@@ -16,7 +16,7 @@ throttler = "^1.2.2"
 [tool.poetry.dev-dependencies]
 black = "^24.0.0"
 coverage = {extras = ["toml"], version = "^7.3.2"}
-flake8 = "^6.1.0"
+flake8 = "^7.1.1"
 flake8-bugbear = "^23.3.12"
 pytest = "^8.3"
 snakemake-storage-plugin-http = {git="https://github.com/snakemake/snakemake-storage-plugin-http.git"}