Bump certifi from 2022.6.15 to 2022.12.7 in /docs

Bumps [certifi](https://github.com/certifi/python-certifi) from 2022.6.15 to 2022.12.7.
- [Release notes](https://github.com/certifi/python-certifi/releases)
- [Commits](certifi/python-certifi@2022.06.15...2022.12.07)

---
updated-dependencies:
- dependency-name: certifi
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

docs/requirements.txt

@@ -4,22 +4,22 @@
 #
 #    pip-compile --output-file=docs/requirements.txt docs/requirements.in
 #
-certifi==2022.6.15
+certifi==2022.12.7
     # via requests
 charset-normalizer==2.1.0
     # via requests
 idna==3.3
     # via requests
 iso3166==2.1.1
-    # via -r docs/requirements.in
+    # via -r requirements.in
 networkx==3.0
-    # via -r docs/requirements.in
+    # via -r requirements.in
 pydantic==1.10.4
-    # via -r docs/requirements.in
+    # via -r requirements.in
 pyhumps==3.8.0
-    # via -r docs/requirements.in
+    # via -r requirements.in
 requests==2.28.2
-    # via -r docs/requirements.in
+    # via -r requirements.in
 typing-extensions==4.3.0
     # via pydantic
 urllib3==1.26.10