Update flake8 requirement from ~=6.1 to ~=7.0 (#1069)

* Update flake8 requirement from ~=6.1 to ~=7.0

Updates the requirements on [flake8](https://github.com/pycqa/flake8) to permit the latest version.
- [Commits](PyCQA/flake8@6.1.0...7.0.0)

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

Signed-off-by: dependabot[bot] <[email protected]>

* Add automated changelog yaml from template for bot PR

---------

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

Author: 3 people

.changes/unreleased/Dependencies-20240105-004800.yaml

@@ -0,0 +1,6 @@
+kind: "Dependencies"
+body: "Update flake8 requirement from ~=6.1 to ~=7.0"
+time: 2024-01-05T00:48:00.00000Z
+custom:
+  Author: dependabot[bot]
+  PR: 1069

dev-requirements.txt

@@ -10,7 +10,7 @@ black>=24.3
 bumpversion~=0.6.0
 click~=8.1
 ddtrace==2.3.0
-flake8~=6.1
+flake8~=7.0
 flaky~=3.7
 freezegun~=1.4
 ipdb~=0.13.13