Refactor ci after sbroad incorporation

Streamline pipeline nesting: !1431 (comment 111229). Lets use one Makefile for everything
Unify compatible jobs. Lint, cargo tests. Possibly keep sbroad integration tests separate.
Unify sbroad and picodata build images. Additionally we can make it so images wont be build on CI changes
Would be nice to shrink .gitlab-ci.yml by moving stuff into separate python scripts or via other ways of reorganization

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