Upgrade dbt_utils to 0.8.0

[mrrobby]

Describe the feature

It seems advantageous to update the dbt_utils package version to support segment as these are commonly used together. See version mismatch in image below. It needs to be >=0.8.0.

Describe alternatives you've considered

We've gone through all dependencies and downgraded each to make this work as a workaround, but this is now throwing some warnings.

Who will this benefit?

Anyone using the newest versions of segment and adwords packages will be affected by this.