fix: copy Go provider Cargo.toml in Docker build stages

Author: nicklasl

Dockerfile

@@ -47,6 +47,7 @@ COPY wasm-msg/Cargo.toml ./wasm-msg/
 COPY wasm/rust-guest/Cargo.toml ./wasm/rust-guest/
 COPY openfeature-provider/java/Cargo.toml ./openfeature-provider/java/
 COPY openfeature-provider/js/Cargo.toml ./openfeature-provider/js/
+COPY openfeature-provider/go/Cargo.toml ./openfeature-provider/go/
 
 # Copy proto files (needed by build.rs)
 COPY confidence-resolver/protos ./confidence-resolver/protos/
@@ -99,6 +100,7 @@ COPY wasm/rust-guest/ ./wasm/rust-guest/
 COPY wasm/proto/ ./wasm/proto/
 COPY openfeature-provider/java/Cargo.toml ./openfeature-provider/java/
 COPY openfeature-provider/js/Cargo.toml ./openfeature-provider/js/
+COPY openfeature-provider/go/Cargo.toml ./openfeature-provider/go/
 
 # Touch files to ensure rebuild (dependencies are cached)
 RUN find . -type f -name "*.rs" -exec touch {} +
@@ -152,6 +154,7 @@ COPY wasm/rust-guest/ ./wasm/rust-guest/
 COPY wasm/proto/ ./wasm/proto/
 COPY openfeature-provider/java/Cargo.toml ./openfeature-provider/java/
 COPY openfeature-provider/js/Cargo.toml ./openfeature-provider/js/
+COPY openfeature-provider/go/Cargo.toml ./openfeature-provider/go/
 
 # Copy data directory (needed by confidence-cloudflare-resolver include_str! macros)
 COPY data/ ./data/