build: update .dockerignore to include additional files

- remove exclusions for docker-compose files to support build configurations
- remove exclusions for docs directory to include documentation in context
- remove exclusions for Cargo.lock and .cargo-ok to enable dependency tracking
- remove exclusions for test artifacts to facilitate integration testing in builds

Signed-off-by: mingcheng <mingcheng@apache.org>

Author: mingcheng

.dockerignore

@@ -13,10 +13,6 @@ docker-compose*
 # Documentation
 /docs
 
-# Project build files
-Cargo.lock
-**/.cargo-ok
-
 # Test artifacts
 **/*test-*
 **/*Test*