Arvados

Steps to reproduce:

1. In a -staging branch, make a commit to a high-level tool that uses the Python SDK like tools/cluster-activity, without making any commits to sdk/python etc.
2. Run the test suite.

Expected result: tests pass.

Actual result: the install fails with an error like this:

======= install tools/cluster-activity
Using /tmp/workspace/developer-run-tests-doc-sdk-java-R/tools/cluster-activity for version number calculation of /tmp/workspace/developer-run-tests-doc-sdk-java-R/tools/cluster-activity
Processing /tmp/workspace/developer-run-tests-doc-sdk-java-R/tools/cluster-activity
ERROR: Could not find a version that satisfies the requirement arvados-python-client~=3.1.1.dev0 (from arvados-cluster-activity)
ERROR: No matching distribution found for arvados-python-client~=3.1.1.dev0
======= tools/cluster-activity install -- FAILED

The reason this fails is because the SDK only got built with version 3.1.0 because it has no more recent commits that would make it eligible to be 3.1.1:

Successfully installed arvados-python-client-3.1.0.dev20250314161126
======= install sdk/python -- 2s

So either we need to set a better floor for generated version numbers, or relax the dependency between Python modules.