Bump mkdocs from 1.5.3 to 1.6.0 in /tests in the dependencies group

Bumps the dependencies group in /tests with 1 update: [mkdocs](https://github.com/mkdocs/mkdocs).


Updates `mkdocs` from 1.5.3 to 1.6.0
- [Release notes](https://github.com/mkdocs/mkdocs/releases)
- [Commits](mkdocs/mkdocs@1.5.3...1.6.0)

---
updated-dependencies:
- dependency-name: mkdocs
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: dependencies
...

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

tests/requirements.txt

@@ -73,8 +73,10 @@ markupsafe==2.1.3
     #   mkdocs
     #   mkdocstrings
 mergedeep==1.3.4
-    # via mkdocs
-mkdocs==1.5.3
+    # via
+    #   mkdocs
+    #   mkdocs-get-deps
+mkdocs==1.6.0
     # via
     #   -r requirements.in
     #   mkdocs-ansible
@@ -93,6 +95,8 @@ mkdocs-autorefs==0.5.0
     # via mkdocstrings
 mkdocs-gen-files==0.5.0
     # via mkdocs-ansible
+mkdocs-get-deps==0.2.0
+    # via mkdocs
 mkdocs-htmlproofer-plugin==1.0.0
     # via mkdocs-ansible
 mkdocs-macros-plugin==1.0.5
@@ -129,7 +133,7 @@ pipdeptree==2.13.1
     # via mkdocs-ansible
 platformdirs==4.1.0
     # via
-    #   mkdocs
+    #   mkdocs-get-deps
     #   mkdocstrings
 pycparser==2.21
     # via cffi
@@ -150,6 +154,7 @@ python-slugify==8.0.1
 pyyaml==6.0.1
     # via
     #   mkdocs
+    #   mkdocs-get-deps
     #   mkdocs-macros-plugin
     #   pymdown-extensions
     #   pyyaml-env-tag