fix: reenable dart test

Signed-off-by: Roman Volosatovs <[email protected]>

Dockerfile

@@ -369,7 +369,7 @@ COPY protoc-wrapper /usr/bin/protoc-wrapper
 RUN mkdir -p /test
 RUN protoc-wrapper \
         --c_out=/test \
-        #--dart_out=/test \
+        --dart_out=/test \
         --go_out=/test \
         --gotemplate_out=/test \
         --govalidators_out=/test \