Update to crossplane-runtime v2.0.0

[twobiers]

Description of your changes

Fixes #225

I have:

• Read and followed Crossplane's contribution process.
• Run make reviewable to ensure this PR is ready for review.

How has this code been tested

Running unit tests

[jbw976]

Thanks for taking the initiative on this @twobiers!

Would you also be up for taking this update for a test drive in building a function, e.g. building on what's in https://docs.crossplane.io/v2.0/guides/write-a-composition-function-in-go/, to see if everything is working as expected there for namespaced resources? That would be really helpful 🙏

[haarchri]

@twobiers did you get a chance to check if your PR works with the linked docs?

[bakito]

I was able to successfully test this version (redirect to twobiers:v2) of the function sdk in some internal functions with namespaced and cluster scoped resource functions.

[haarchri]

@jbw976 can we bring this in and cut a new release ?

[twobiers]

@twobiers did you get a chance to check if your PR works with the linked docs?

No, I didn't have enough capacity yet for a full trial. If anyone wants to take this PR over, feel free to do so.

[jbw976]

If anyone wants to take this PR over, feel free to do so.

Thanks for your efforts so far @twobiers! and thank you @bakito for your testing validation, really helpful! 🙇‍♂️

I rebased this PR from latest on main to fix merge conflicts, mostly around the removal of provider-aws dependency in #224. I also bumped go to v1.24.8 and golangci-lint to v2.4.0 consistently across Makefile and ci.yml.

I've done some testing using some local replace statements in a go.mod, but I also want to build/push/install a package to test the full lifecycle of a function doing v2 stuff on a live control plane too before calling this good ✅

[haarchri]

@jbw976 can we merge the PR then ?