Bump Python dependencies for building FathomFox.

cli/doc-building-requirements.txt

@@ -1,6 +1,6 @@
 alabaster==0.7.12
 Babel==2.8.0
-certifi==2020.6.20
+certifi==2023.5.7
 chardet==3.0.4
 docutils==0.16
 idna==2.10
@@ -13,7 +13,7 @@ pbr==5.4.5
 Pygments==2.6.1
 pyparsing==2.4.7
 pytz==2020.1
-requests==2.24.0
+requests==2.31.0
 six==1.15.0
 snowballstemmer==2.0.0
 Sphinx==3.1.2
@@ -26,4 +26,4 @@ sphinxcontrib-htmlhelp==1.0.3
 sphinxcontrib-jsmath==1.0.1
 sphinxcontrib-qthelp==1.0.3
 sphinxcontrib-serializinghtml==1.1.4
-urllib3==1.25.9
+urllib3==2.0.3