Bump ruamel-yaml from 0.18.6 to 0.18.7 (#510)

Bumps ruamel-yaml from 0.18.6 to 0.18.7.

---
updated-dependencies:
- dependency-name: ruamel-yaml
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

pyproject.toml

@@ -18,7 +18,7 @@ classifiers = [
 requires-python = ">=3.9"
 dependencies = [
     'tomli>=2.0;python_version<"3.11"',
-    "ruamel.yaml==0.18.6",
+    "ruamel.yaml==0.18.7",
     "jsonschema>=4.18.0,<5.0",
     "regress>=0.4.0",
     "requests<3.0",