fix: correct grpcio version range for compatibility with Python 3.13

Same as exporter/opentelemetry-exporter-otlp-proto-grpc/pyproject.toml

Author: dimaqq

exporter/opentelemetry-exporter-opencensus/pyproject.toml

@@ -29,7 +29,8 @@ classifiers = [
   "Typing :: Typed",
 ]
 dependencies = [
-  "grpcio >= 1.0.0, < 2.0.0",
+  "grpcio >= 1.63.2, < 2.0.0; python_version < '3.13'",
+  "grpcio >= 1.66.2, < 2.0.0; python_version >= '3.13'",
   "opencensus-proto >= 0.1.0, < 1.0.0",
   "opentelemetry-api >= 1.31.0.dev",
   "opentelemetry-sdk >= 1.15",