Update requirements.

Author: Julian

docs/requirements.txt

@@ -8,22 +8,16 @@ alabaster==0.7.13
     # via sphinx
 attrs==23.1.0
     # via referencing
-babel==2.13.0
+babel==2.13.1
     # via sphinx
 beautifulsoup4==4.12.2
     # via furo
 certifi==2023.7.22
     # via requests
-charset-normalizer==3.3.1
+charset-normalizer==3.3.2
     # via requests
-contourpy==1.1.1
-    # via matplotlib
-cycler==0.12.1
-    # via matplotlib
 docutils==0.20.1
     # via sphinx
-fonttools==4.43.1
-    # via matplotlib
 furo==2023.9.10
     # via -r docs/requirements.in
 idna==3.4
@@ -34,22 +28,10 @@ jinja2==3.1.2
     # via sphinx
 file:.#egg=jsonschema_specifications
     # via -r docs/requirements.in
-kiwisolver==1.4.5
-    # via matplotlib
 markupsafe==2.1.3
     # via jinja2
-matplotlib==3.8.0
-    # via sphinxext-opengraph
-numpy==1.26.1
-    # via
-    #   contourpy
-    #   matplotlib
 packaging==23.2
-    # via
-    #   matplotlib
-    #   sphinx
-pillow==10.1.0
-    # via matplotlib
+    # via sphinx
 pyenchant==3.2.2
     # via sphinxcontrib-spelling
 pygments==2.16.1
@@ -59,18 +41,12 @@ pygments==2.16.1
     #   sphinx
 pygments-github-lexers==0.0.5
     # via -r docs/requirements.in
-pyparsing==3.1.1
-    # via matplotlib
-python-dateutil==2.8.2
-    # via matplotlib
-referencing==0.30.2
+referencing==0.31.0
     # via jsonschema-specifications
 requests==2.31.0
     # via sphinx
-rpds-py==0.10.6
+rpds-py==0.12.0
     # via referencing
-six==1.16.0
-    # via python-dateutil
 snowballstemmer==2.2.0
     # via sphinx
 soupsieve==2.5
@@ -106,7 +82,7 @@ sphinxcontrib-serializinghtml==1.1.9
     # via sphinx
 sphinxcontrib-spelling==8.0.0
     # via -r docs/requirements.in
-sphinxext-opengraph==0.8.2
+sphinxext-opengraph==0.9.0
     # via -r docs/requirements.in
-urllib3==2.0.7
+urllib3==2.1.0
     # via requests