Remove pin to Gurobi 10.0.3

[jsiirola]

Fixes #3052 ... sort of.

Summary/Motivation:

This removed the pin to Gurobi 10.0.3, as the Community Edition License for that version has expired.

This exposes the GHA tests to the test failures from #3052. This PR implements a "workaround" so that those tests do not fail in Gurobi 11, however it does that by updating the expected baselines. This has the effect that those two tests no longer test the advertised behavior in Gurobi 11. Unfortunately, we can no longer wait for a better option as we have to release the pin to Gurobi<11 to get GHA tests running again.

FYI: @michaelbynum

Changes proposed in this PR:

• Remove pin to Gurobi 10.0.3 on GHA
• Update 2 tests (in both APPSI and contrib/solver) so that they do not fail under Gurobi 11.

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