devcontainer: replace VAULT_HOST with AWS_ROLE_ARN #743

Job	Run time
Compute matrix	2s
Doxygen check	17s
Verify Dev Containers / Verify devcontainers	10s
CUDA11.8 gcc / amd64 / Build gcc11/C++17 / Build gcc11/C++17	2m 15s
CUDA12.5 gcc / amd64 / Build gcc12/C++17 / Build gcc12/C++17	2m 19s
CUDA12.5 gcc / amd64 / Build gcc13/C++17 / Build gcc13/C++17	2m 58s
CUDA12.5 gcc / arm64 / Build gcc12/C++17 / Build gcc12/C++17	2m 2s
Verify Dev Containers / List devcontainers	3s
Verify Dev Containers / cuda12.5-gcc13	1m 49s
Verify Dev Containers / cuda12.5-gcc13	1m 9s
Verify Dev Containers / cuda12.4-gcc12	1m 5s
Verify Dev Containers / cuda11.8-gcc11	58s
Verify Dev Containers / cuda12.5-gcc12	1m 8s
CUDA12.5 gcc / arm64 / Test ${{ inputs.test_name }}	0s
CUDA12.5 gcc / amd64 / Test ${{ inputs.test_name }}	0s
CUDA11.8 gcc / amd64 / Test gcc11/C++17 / Test gcc11/C++17	6m 25s
CUDA12.5 gcc / amd64 / Test gcc12/C++17 / Test gcc12/C++17	6m 24s
CI success	1s
	29m 5s

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