Fix: Wrong docker tag in dev container (#578)

* Add ~default vscode and devcontainer configs

* Update Docker tag to release-v5.5

Author: CarbonNeuron

.devcontainer/Dockerfile

@@ -1,4 +1,4 @@
-ARG DOCKER_TAG=release-v5.5.1
+ARG DOCKER_TAG=release-v5.5
 FROM espressif/idf:${DOCKER_TAG}
 
 ENV LC_ALL=C.UTF-8
@@ -10,4 +10,4 @@ RUN echo "source /opt/esp/idf/export.sh > /dev/null 2>&1" >> ~/.bashrc
 
 ENTRYPOINT [ "/opt/esp/entrypoint.sh" ]
 
-CMD ["/bin/bash", "-c"]
+CMD ["/bin/bash", "-c"]