Update python dependencies

| datasource | package      | from      | to        |
| ---------- | ------------ | --------- | --------- |
| pypi       | cachetools   | 7.1.4     | 7.1.5     |
| pypi       | certifi      | 2026.6.17 | 2026.7.22 |
| pypi       | google-auth  | 2.56.0    | 2.56.2    |
| pypi       | greenlet     | 3.5.3     | 3.5.4     |
| pypi       | grpcio       | 1.82.1    | 1.83.0    |
| pypi       | grpcio-tools | 1.82.1    | 1.83.0    |


Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/scripts/requirements.txt

@@ -4,9 +4,9 @@
 #
 #    pip-compile --generate-hashes --output-file=requirements.txt requirements.in
 #
-certifi==2026.6.17 \
-    --hash=sha256:024c88eeec92ca068db80f02b8b07c9cef7b9fe261d1d535abfd5abd6f6af432 \
-    --hash=sha256:2227dcbaafe0d2f59279d1762ddddc37783ed4354594f194ffc31d20f41fc3db
+certifi==2026.7.22 \
+    --hash=sha256:62f22742b58a1a33014a2b6b706588a8d7e2a88ae7bd1a6ebe8c992928483775 \
+    --hash=sha256:741e2c3b351ddf169a738da9f2c048608ff7f2c5cc02f1ebc6b118bb090d5d55
     # via requests
 cffi==2.1.0 \
     --hash=sha256:02cb7ff33ded4f1532476731f89ede53e2e488a8e6205515a82144246ffa7dcc \