chore: format proto files (backport #17445) (#17447)

Co-authored-by: Marko <marko@baricevic.me>
Co-authored-by: Julien Robert <julien@rbrt.fr>

scripts/protocgen.sh

@@ -4,6 +4,9 @@
 # docker build --pull --rm -f "contrib/devtools/Dockerfile" -t cosmossdk-proto:latest "contrib/devtools"
 # docker run --rm -v $(pwd):/workspace --workdir /workspace cosmossdk-proto sh ./scripts/protocgen.sh
 
+echo "Formatting protobuf files"
+find ./ -name "*.proto" -exec clang-format -i {} \;
+
 set -e
 
 echo "Generating gogo proto code"
@@ -34,4 +37,4 @@ rm -rf github.com cosmossdk.io
 
 go mod tidy
 
-./scripts/protocgen-pulsar.sh
+./scripts/protocgen-pulsar.sh