fix: hack/api-docs/requirements.txt to reduce vulnerabilities

The following vulnerabilities are fixed by pinning transitive dependencies:
- https://snyk.io/vuln/SNYK-PYTHON-JINJA2-6150717
- https://snyk.io/vuln/SNYK-PYTHON-JINJA2-6809379
- https://snyk.io/vuln/SNYK-PYTHON-MKDOCS-2438396
- https://snyk.io/vuln/SNYK-PYTHON-PYGMENTS-5750273
- https://snyk.io/vuln/SNYK-PYTHON-PYMDOWNEXTENSIONS-5537103

hack/api-docs/requirements.txt

@@ -1,17 +1,17 @@
 Click==8.0.3
 htmlmin==0.1.12
-Jinja2==3.0.3
+Jinja2==3.1.4
 jsmin==3.0.1
 livereload==2.6.3
 Markdown==3.3.6
 MarkupSafe==2.0.1
-mkdocs==1.2.3
+mkdocs==1.3.0
 mike==1.1.2
 mkdocs-material==8.1.10
 mkdocs-minify-plugin==0.5.0
 pep562==1.1
-Pygments==2.11.2
-pymdown-extensions==9.1
+Pygments==2.15.0
+pymdown-extensions==10.0
 PyYAML==6.0
 six==1.16.0
 tornado==6.1