chore(deps): update dependency colorlog to v6.9.0 (#432)

Author: renovate-bot

packages/sqlalchemy-spanner/.kokoro/requirements.txt

@@ -206,9 +206,9 @@ click==8.0.4 \
     # via
     #   gcp-docuploader
     #   gcp-releasetool
-colorlog==6.7.0 \
-    --hash=sha256:0d33ca236784a1ba3ff9c532d4964126d8a2c44f1f0cb1d2b0728196f512f662 \
-    --hash=sha256:bd94bd21c1e13fac7bd3153f4bc3a7dc0eb0974b8bc2fdf1a989e474f6e582e5
+colorlog==6.9.0 \
+    --hash=sha256:5906e71acd67cb07a71e779c47c4bcb45fb8c2993eebe9e5adcd6a6f1b283eff \
+    --hash=sha256:bfba54a1b93b94f54e1f4fe48395725a3d92fd2a4af702f6bd70946bdc0c6ac2
     # via
     #   gcp-docuploader
     #   nox