build(deps): bump starlette from 0.39.2 to 0.40.0 in /docs

Bumps [starlette](https://github.com/encode/starlette) from 0.39.2 to 0.40.0.
- [Release notes](https://github.com/encode/starlette/releases)
- [Changelog](https://github.com/encode/starlette/blob/master/docs/release-notes.md)
- [Commits](Kludex/starlette@0.39.2...0.40.0)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

docs/requirements-docs.txt

@@ -39,7 +39,7 @@ beautifulsoup4==4.12.3
 bleach==6.1.0
     # via nbconvert
 boto3==1.35.37
-    # via -r docs/requirements-docs.in
+    # via -r requirements-docs.in
 botocore==1.35.37
     # via
     #   boto3
@@ -110,7 +110,7 @@ ipykernel==6.29.5
     #   jupyterlab
 ipython==8.28.0
     # via
-    #   -r docs/requirements-docs.in
+    #   -r requirements-docs.in
     #   ipykernel
     #   ipywidgets
     #   jupyter-console
@@ -122,7 +122,7 @@ jedi==0.19.1
     # via ipython
 jinja2==3.1.4
     # via
-    #   -r docs/requirements-docs.in
+    #   -r requirements-docs.in
     #   jupyter-server
     #   jupyterlab
     #   jupyterlab-server
@@ -145,7 +145,7 @@ jsonschema[format-nongpl]==4.23.0
 jsonschema-specifications==2023.12.1
     # via jsonschema
 jupyter==1.1.1
-    # via -r docs/requirements-docs.in
+    # via -r requirements-docs.in
 jupyter-client==8.6.3
     # via
     #   ipykernel
@@ -213,7 +213,7 @@ nbformat==5.10.4
     #   nbconvert
     #   nbsphinx
 nbsphinx==0.9.5
-    # via -r docs/requirements-docs.in
+    # via -r requirements-docs.in
 nest-asyncio==1.6.0
     # via ipykernel
 notebook==7.2.2
@@ -262,7 +262,7 @@ pure-eval==0.2.3
 pycparser==2.22
     # via cffi
 pydata-sphinx-theme==0.15.4
-    # via -r docs/requirements-docs.in
+    # via -r requirements-docs.in
 pygments==2.18.0
     # via
     #   accessible-pygments
@@ -289,7 +289,7 @@ pyzmq==26.2.0
     #   jupyter-console
     #   jupyter-server
 rasterio==1.4.1
-    # via -r docs/requirements-docs.in
+    # via -r requirements-docs.in
 referencing==0.35.1
     # via
     #   jsonschema
@@ -316,7 +316,7 @@ s3transfer==0.10.2
 send2trash==1.8.3
     # via jupyter-server
 shapely==2.0.6
-    # via -r docs/requirements-docs.in
+    # via -r requirements-docs.in
 six==1.16.0
     # via
     #   asttokens
@@ -333,21 +333,21 @@ soupsieve==2.6
     # via beautifulsoup4
 sphinx==8.0.2
     # via
-    #   -r docs/requirements-docs.in
+    #   -r requirements-docs.in
     #   nbsphinx
     #   pydata-sphinx-theme
     #   sphinx-autobuild
     #   sphinx-design
 sphinx-autobuild==2024.10.3
-    # via -r docs/requirements-docs.in
+    # via -r requirements-docs.in
 sphinx-design==0.6.1
-    # via -r docs/requirements-docs.in
+    # via -r requirements-docs.in
 sphinxcontrib-applehelp==2.0.0
     # via sphinx
 sphinxcontrib-devhelp==2.0.0
     # via sphinx
 sphinxcontrib-fulltoc==1.2.0
-    # via -r docs/requirements-docs.in
+    # via -r requirements-docs.in
 sphinxcontrib-htmlhelp==2.1.0
     # via sphinx
 sphinxcontrib-jsmath==1.0.1
@@ -358,7 +358,7 @@ sphinxcontrib-serializinghtml==2.0.0
     # via sphinx
 stack-data==0.6.3
     # via ipython
-starlette==0.39.2
+starlette==0.40.0
     # via sphinx-autobuild
 terminado==0.18.1
     # via