build(deps): bump starlette from 0.37.2 to 0.40.0 in /doc

Bumps [starlette](https://github.com/encode/starlette) from 0.37.2 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](encode/starlette@0.37.2...0.40.0)

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

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

doc/requirements.txt

@@ -314,7 +314,7 @@ pyyaml==6.0.1 \
 recommonmark==0.7.1 \
     --hash=sha256:1b1db69af0231efce3fa21b94ff627ea33dee7079a01dd0a7f8482c3da148b3f \
     --hash=sha256:bdb4db649f2222dcd8d2d844f0006b958d627f732415d399791ee436a3686d67
-    # via -r doc/requirements.in
+    # via -r requirements.in
 referencing==0.34.0 \
     --hash=sha256:5773bd84ef41799a5a8ca72dc34590c041eb01bf9aa02632b4a973fb0181a844 \
     --hash=sha256:d53ae300ceddd3169f1ffa9caf2cb7b769e92657e4fafb23d34b93679116dfd4
@@ -539,7 +539,7 @@ sphinx==7.3.7 \
     --hash=sha256:413f75440be4cacf328f580b4274ada4565fb2187d696a84970c23f77b64d8c3 \
     --hash=sha256:a4a7db75ed37531c05002d56ed6948d4c42f473a36f46e1382b0bd76ca9627bc
     # via
-    #   -r doc/requirements.in
+    #   -r requirements.in
     #   recommonmark
     #   sphinx-autobuild
     #   sphinx-copybutton
@@ -551,27 +551,27 @@ sphinx==7.3.7 \
 sphinx-autobuild==2024.4.16 \
     --hash=sha256:1c0ed37a1970eed197f9c5a66d65759e7c4e4cba7b5a5d77940752bf1a59f2c7 \
     --hash=sha256:f2522779d30fcbf0253e09714f274ce8c608cb6ebcd67922b1c54de59faba702
-    # via -r doc/requirements.in
+    # via -r requirements.in
 sphinx-copybutton==0.5.2 \
     --hash=sha256:4cf17c82fb9646d1bc9ca92ac280813a3b605d8c421225fd9913154103ee1fbd \
     --hash=sha256:fb543fd386d917746c9a2c50360c7905b605726b9355cd26e9974857afeae06e
-    # via -r doc/requirements.in
+    # via -r requirements.in
 sphinx-design==0.6.0 \
     --hash=sha256:e9bd07eecec82eb07ff72cb50fc3624e186b04f5661270bc7b62db86c7546e95 \
     --hash=sha256:ec8e3c5c59fed4049b3a5a2e209360feab31829346b5f6a0c7c342b894082192
-    # via -r doc/requirements.in
+    # via -r requirements.in
 sphinx-lint==0.9.1 \
     --hash=sha256:185cee19ff1129549c45e15a3b25404daeb47c54d15112dda589cedad82957aa \
     --hash=sha256:df34271ab65ce43676cbd90726f4dea5cd200b43b01448b2aee8f06e609edcbb
-    # via -r doc/requirements.in
+    # via -r requirements.in
 sphinx-mdinclude==0.6.0 \
     --hash=sha256:764b6aeee28002b9d02060758266761a2c724805594d264b19e6ceeaa3bad393 \
     --hash=sha256:b1cb4dfa22ce17ca20e90e34d4349d8a97c5052709d9c4eed051cdabb615b20b
     # via sphinxcontrib-openapi
 sphinx-rtd-theme==2.0.0 \
     --hash=sha256:bd5d7b80622406762073a04ef8fadc5f9151261563d47027de09910ce03afe6b \
     --hash=sha256:ec93d0856dc280cf3aee9a4c9807c60e027c7f7b461b77aeffed682e68f0e586
-    # via -r doc/requirements.in
+    # via -r requirements.in
 sphinxcontrib-applehelp==1.0.8 \
     --hash=sha256:c40a4f96f3776c4393d933412053962fac2b84f4c99a7982ba42e09576a70619 \
     --hash=sha256:cb61eb0ec1b61f349e5cc36b2028e9e7ca765be05e49641c97241274753067b4
@@ -599,7 +599,7 @@ sphinxcontrib-jsmath==1.0.1 \
 sphinxcontrib-openapi==0.8.4 \
     --hash=sha256:50911c18d452d9390ee3a384ef8dc8bde6135f542ba55691f81e1fbc0b71014e \
     --hash=sha256:df883808a5b5e4b4113ad697185c43a3f42df3dce70453af78ba7076907e9a20
-    # via -r doc/requirements.in
+    # via -r requirements.in
 sphinxcontrib-qthelp==1.0.7 \
     --hash=sha256:053dedc38823a80a7209a80860b16b722e9e0209e32fea98c90e4e6624588ed6 \
     --hash=sha256:e2ae3b5c492d58fcbd73281fbd27e34b8393ec34a073c792642cd8e529288182
@@ -608,9 +608,9 @@ sphinxcontrib-serializinghtml==1.1.10 \
     --hash=sha256:326369b8df80a7d2d8d7f99aa5ac577f51ea51556ed974e7716cfd4fca3f6cb7 \
     --hash=sha256:93f3f5dc458b91b192fe10c397e324f262cf163d79f3282c158e8436a2c4511f
     # via sphinx
-starlette==0.37.2 \
-    --hash=sha256:6fe59f29268538e5d0d182f2791a479a0c64638e6935d1c6989e63fb2699c6ee \
-    --hash=sha256:9af890290133b79fc3db55474ade20f6220a364a0402e0b556e7cd5e1e093823
+starlette==0.40.0 \
+    --hash=sha256:1a3139688fb298ce5e2d661d37046a66ad996ce94be4d4983be019a23a04ea35 \
+    --hash=sha256:c494a22fae73805376ea6bf88439783ecfba9aac88a43911b48c653437e784c4
     # via sphinx-autobuild
 tomli==2.0.1 \
     --hash=sha256:939de3e7a6161af0c887ef91b7d41a53e7c5a1ca976325f429cb46ea9bc30ecc \