Update supported solidity range to >=0.6.2 <0.9.0

[janbro]

We should match forges solidity support range. We should be able to support this range natively, but should verify before builds are successful before making this change.

[FolarinMK]

Kindly elaborate the kind of issue you had

[janbro]

We want to support a wider range of solidity versions so there are no issue with compilation when importing code with strict versioning