chore(deps): bump pyasn1 from 0.6.2 to 0.6.3 in /.kokoro/docs/docker (#9016)

Bumps [pyasn1](https://github.com/pyasn1/pyasn1) from 0.6.2 to 0.6.3.
- [Release notes](https://github.com/pyasn1/pyasn1/releases)
- [Changelog](https://github.com/pyasn1/pyasn1/blob/main/CHANGES.rst)
- [Commits](pyasn1/pyasn1@v0.6.2...v0.6.3)

---
updated-dependencies:
- dependency-name: pyasn1
  dependency-version: 0.6.3
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.kokoro/docs/docker/requirements.txt

@@ -4,9 +4,9 @@
 #
 #    pip-compile --generate-hashes requirements.in
 #
-cachetools==7.0.2 \
-    --hash=sha256:7e7f09a4ca8b791d8bb4864afc71e9c17e607a28e6839ca1a644253c97dbeae0 \
-    --hash=sha256:938dcad184827c5e94928c4fd5526e2b46692b7fb1ae94472da9131d0299343c
+cachetools==6.2.6 \
+    --hash=sha256:16c33e1f276b9a9c0b49ab5782d901e3ad3de0dd6da9bf9bcd29ac5672f2f9e6 \
+    --hash=sha256:8c9717235b3c651603fff0076db52d6acbfd1b338b8ed50256092f7ce9c85bda
     # via google-auth
 certifi==2026.1.4 \
     --hash=sha256:9943707519e4add1115f44c2bc244f782c0249876bf51b6599fee1ffbedd685c \
@@ -105,23 +105,25 @@ proto-plus==1.26.1 \
     # via
     #   -r requirements.in
     #   google-api-core
-protobuf==7.34.0 \
-    --hash=sha256:3871a3df67c710aaf7bb8d214cc997342e63ceebd940c8c7fc65c9b3d697591a \
-    --hash=sha256:4a72a8ec94e7a9f7ef7fe818ed26d073305f347f8b3b5ba31e22f81fd85fca02 \
-    --hash=sha256:8e329966799f2c271d5e05e236459fe1cbfdb8755aaa3b0914fa60947ddea408 \
-    --hash=sha256:964cf977e07f479c0697964e83deda72bcbc75c3badab506fb061b352d991b01 \
-    --hash=sha256:9d7a5005fb96f3c1e64f397f91500b0eb371b28da81296ae73a6b08a5b76cdd6 \
-    --hash=sha256:9f9079f1dde4e32342ecbd1c118d76367090d4aaa19da78230c38101c5b3dd40 \
-    --hash=sha256:e3b914dd77fa33fa06ab2baa97937746ab25695f389869afdf03e81f34e45dc7 \
-    --hash=sha256:f791ec509707a1d91bd02e07df157e75e4fb9fbdad12a81b7396201ec244e2e3
+protobuf==6.33.5 \
+    --hash=sha256:3093804752167bcab3998bec9f1048baae6e29505adaf1afd14a37bddede533c \
+    --hash=sha256:69915a973dd0f60f31a08b8318b73eab2bd6a392c79184b3612226b0a3f8ec02 \
+    --hash=sha256:6ddcac2a081f8b7b9642c09406bc6a4290128fce5f471cddd165960bb9119e5c \
+    --hash=sha256:8afa18e1d6d20af15b417e728e9f60f3aa108ee76f23c3b2c07a2c3b546d3afd \
+    --hash=sha256:8f04fa32763dcdb4973d537d6b54e615cc61108c7cb38fe59310c3192d29510a \
+    --hash=sha256:9b71e0281f36f179d00cbcb119cb19dec4d14a81393e5ea220f64b286173e190 \
+    --hash=sha256:a3157e62729aafb8df6da2c03aa5c0937c7266c626ce11a278b6eb7963c4e37c \
+    --hash=sha256:a5cb85982d95d906df1e2210e58f8e4f1e3cdc088e52c921a041f9c9a0386de5 \
+    --hash=sha256:cbf16ba3350fb7b889fca858fb215967792dc125b35c7976ca4818bee3521cf0 \
+    --hash=sha256:d71b040839446bac0f4d162e758bea99c8251161dae9d0983a3b88dee345153b
     # via
     #   gcp-docuploader
     #   google-api-core
     #   googleapis-common-protos
     #   proto-plus
-pyasn1==0.6.2 \
-    --hash=sha256:1eb26d860996a18e9b6ed05e7aae0e9fc21619fcee6af91cca9bad4fbea224bf \
-    --hash=sha256:9b59a2b25ba7e4f8197db7686c09fb33e658b98339fadb826e9512629017833b
+pyasn1==0.6.3 \
+    --hash=sha256:697a8ecd6d98891189184ca1fa05d1bb00e2f84b5977c481452050549c8a72cf \
+    --hash=sha256:a80184d120f0864a52a073acc6fc642847d0be408e7c7252f31390c0f4eadcde
     # via
     #   pyasn1-modules
     #   rsa