Add install test without toolchain

[timokoessler]

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[aikido-pr-checks]

🟡 Medium - Install check cannot pass because pytricia has no wheel

The image uses Python 3.14 on Linux, where the package's required pytricia dependency is selected, but the repository lock records version 1.3.0 with only a source tarball. Because --only-binary=:all: forbids that distribution and the slim image has no compiler to build it, every run reaches pip's resolution error before installing the project, leaving this new workflow permanently red rather than providing a usable toolchain-free install check.

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Provide and select a Linux/Python 3.14 wheel-capable replacement or release wheels for the required pytricia dependency before enforcing this check. If source builds are intentionally supported instead, remove the all-binary restriction and explicitly install the required build toolchain; otherwise use a dependency set that is actually satisfiable in the restricted image.

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[timokoessler]

Yes, that is why we add a test for it. We will wait with merging this until we can enforce it.