feat: less restrictive solidity compiler pragmas

[heueristik]

Description

Although the compiler pragma is lowered from pragma solidity 0.8.17; to pragma solidity ^0.8.8;, we will still compile OSx with 0.8.17 and the legacy code generation pipeline (i.e., not with --viaIR). The change allows plugin developers to use newer compiler versions and test against all OSx contracts.

Task ID: OS-720

Type of change

• Bug fix (non-breaking change which fixes an issue)

Checklist:

• I have selected the correct base branch.
• I have performed a self-review of my own code.
• I have commented my code, particularly in hard-to-understand areas.
• My changes generate no new warnings.
• Any dependent changes have been merged and published in downstream modules.
• I ran all tests with success and extended them if necessary.
• I have updated the CHANGELOG.md file in the root folder.
• I have updated the DEPLOYMENT_CHECKLIST file in the root folder.
• I have updated the UPDATE_CHECKLIST file in the root folder.

[mathewmeconry]

LGTM.
We still have some pragmas in the developer portal locked to 0.8.21. It could be problematic because solidity v0.8.21 is using shanghai and includes PUSH0 thus these contracts won't deploy on L2s for now

[heueristik]

LGTM. We still have some pragmas in the developer portal locked to 0.8.21. It could be problematic because solidity v0.8.21 is using shanghai and includes PUSH0 thus these contracts won't deploy on L2s for now

Yes, for the dev portal, I used a safe compiler version that is not affected by compiler bugs such as this one yet.