Warnings can be found with commands

• cargo clippy --features compact_filters --no-default-features

Also need to fix:

• wallet/utils.rs#106, fix and remove #[allow(dead_code)]
• database/any.rs#325, fix and remove #[allow(irrefutable_let_patterns)]

After warnings are fixed enable clippy checks by default in cont_integration.yml for the build-test job:

• for `strategy.