🏗️ [Core Feature]: Minimize build times

[4meta5]

templates

• [x] Generic Runtime Template
• [x] Evm Template

What is the key feature we're aiming to implement?

CI build and build times in general are too long which negatively effects devex for template users.

Sub-issues:

• [ ] Tanssi imports crates into tc-consensus to re-export traits which pulls the entirety of those crates into the build process
• [ ] sccache GitHub legacy service disabled needs to be re-enabled for the evm-template https://github.com/OpenZeppelin/polkadot-runtime-templates/pull/407#issuecomment-2825484230

Contribution Guidelines

• [x] I agree to follow this project's Contribution Guidelines