Update mcr.microsoft.com/devcontainers/base Docker tag to v2.1.5#4002

mashehu merged 4 commits intodevnf-core/tools:devfrom

renovate/mcr.microsoft.com-devcontainers-base-2.xnf-core/tools:renovate/mcr.microsoft.com-devcontainers-base-2.xCopy head branch name to clipboard