[docker] Add opencontainers image-spec to Dockerfile (hpcaitech#3006)

* feat(docker): Add opencontainers image-spec to `Dockerfile`

This PR makes few changes to improve the overall quality of the docker image 🐳 . For reference more annotations can be found [here](https://github.com/opencontainers/image-spec/blob/main/annotations.md)

* feat(docker): add inline version declaration

* fix(docker): drop `org.opencontainers.image.version` LABEL

docker/Dockerfile

@@ -1,5 +1,10 @@
 FROM hpcaitech/cuda-conda:11.3
 
+# metainformation
+LABEL org.opencontainers.image.source = "https://github.com/hpcaitech/ColossalAI"
+LABEL org.opencontainers.image.licenses = "Apache License 2.0"
+LABEL org.opencontainers.image.base.name = "docker.io/library/hpcaitech/cuda-conda:11.3"
+
 # install torch
 RUN conda install pytorch==1.12.1 torchvision==0.13.1 torchaudio==0.12.1 cudatoolkit=11.3 -c pytorch
 
@@ -22,4 +27,4 @@ RUN conda install cmake && \
     git clone https://github.com/hpcaitech/TensorNVMe.git && \
     cd TensorNVMe && \
     pip install -r requirements.txt && \
-    pip install -v --no-cache-dir .
+    pip install -v --no-cache-dir .