opentelemetry-docker-tests: bump grpcio to 1.63.2 (#3290)

To match the baseline added to opencensus exporter.

Author: xrmx

tests/opentelemetry-docker-tests/tests/test-requirements.txt

@@ -25,7 +25,7 @@ docopt==0.6.2
 exceptiongroup==1.2.0
 flaky==3.7.0
 greenlet==3.0.3
-grpcio==1.62.1
+grpcio==1.63.2
 idna==2.10
 iniconfig==2.0.0
 jsonschema==3.2.0