Downgrade protobuf version back to 3.25.5 and grpc common proto to 2.37.0 (#3287)

Given the difficulty that updating the protobuf version can have for
downstream dependencies, this downgrades the protobuf verison to 3.25.5
and the grpc common version to 2.37.0 on main. This matches our version
on 4.1, effectively reverting #3258.

This resolves #3286.

Author: alecgrieser

gradle/libs.versions.toml

@@ -35,7 +35,7 @@ fdb = "7.1.26"
 geophile = "2.3.0"
 generatedAnnotation = "1.3.2"
 grpc = "1.64.1"
-grpc-commonProtos = "2.54.1"
+grpc-commonProtos = "2.37.0"
 guava = "33.3.1-jre"
 h2 = "1.3.148"
 icu = "69.1"
@@ -47,7 +47,7 @@ jts = "1.16.1"
 log4j = "2.23.1"
 prometheus = "0.16.0"
 prometheus-grpc = "0.6.0"
-protobuf = "4.30.1"
+protobuf = "3.25.5"
 sqlline = "1.12.0"
 slf4j = "1.7.36"