[release/9.0-staging] Backport test fixes related to BinaryFormatter removal #111508
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Backport of #110550 and #111208 to release/9.0-staging
Customer Impact
CI only changes.
Regression
Testing
Both fixes have been tested in the main branch.
Risk
Very low: for #110550 we just perform fewer test cases for large inputs, for #111208 we simply don't test Drawing-related types for Mono as it's not supported.