Merge pull request #15 from ydb-platform/dependabot/pip/examples/reservations-bot-demo/cloud_function/protobuf-3.15.0

Bump protobuf from 3.13.0 to 3.15.0 in /examples/reservations-bot-demo/cloud_function

Author: gridnevvvit

examples/reservations-bot-demo/cloud_function/requirements.txt

@@ -6,7 +6,7 @@ enum-compat==0.0.3
 googleapis-common-protos==1.52.0
 grpcio==1.31.0
 idna==2.10
-protobuf==3.13.0
+protobuf==3.15.0
 pycparser==2.20
 pydantic==1.6.2
 PyJWT==1.7.1