Fix Docker build. Make Dockerfile consistent with CI
# What does this PR do ?

- Fix Docker container build (currently fails) from `Dockerfile`
- Make `Dockerfile` consistent with `Dockerfile.ci` used on CI
- Fix k2 installation

**Known issues**: `TransformerEngine` custom installation results in failures when no GPUs are present: `from nemo.core import ModelPT` fails with `OSError: libcuda.so.1: cannot open shared object file: No such file or directory`. Removing the custom TransformerEngine installation solves the issue. It is also possible to adjust LD_LIBRARY_PATH, but if done globally, this breaks the container with GPU. So, currently, there is a temporary workaround before imports since `docker build` does not expose GPUs (and should not since we want to compile for all architectures, not only for current GPUs).

**Collection**: [CI]

# Changelog 
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# Additional Information
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