Updated pip packages versions... (#98)

* Updated pip packages versions...

... either to bring them to a more recent versions or to match MKDocs insider's installation of the same packages. This will make updating the website a bit faster.

* Made all letters lowercase

requirements.txt

@@ -1,23 +1,23 @@
-click==8.1.3
+click==8.1.7
 ghp-import==2.1.0
 importlib-metadata==4.12.0
-Jinja2==3.1.2
-Markdown==3.3.7
-MarkupSafe==2.1.1
+jinja2==3.1.4
+markdown==3.6
+markupsafe==2.1.1
 mergedeep==1.3.4
-mkdocs==1.5.3
+mkdocs==1.6
 mkdocs-material==9.4.4
-mkdocs-material-extensions==1.2
+mkdocs-material-extensions==1.3.1
 mkdocs-redirects==1.2.1
 mkdocs-static-i18n==1.1.0
 mkdocs-embed-external-markdown==3.0.1
 packaging==21.3
-Pygments==2.16.0
-pymdown-extensions==10.2
+pygments==2.18.0
+pymdown-extensions==10.8.1
 pyparsing==3.0.9
-python-dateutil==2.8.2
-PyYAML==6.0
+python-dateutil>=2.8.1
+pyyaml==6.0.1
 pyyaml_env_tag==0.1
 six==1.16.0
-watchdog==2.1.9
+watchdog==4.0.1
 zipp==3.8.1