fix(resource): also ignore no such element err

[LCaparelli]

Description of your changes

Since crossplane-runtime might also return a "no such element" error, we must also interpret that case, and ignore it in order to patch the existing array with a new element.

https://github.com/crossplane/crossplane-runtime/blob/19d95a69cc03690c4b867ff91d89681fcf872a93/pkg/fieldpath/paved.go#L124-L126

Previous to this change, we only dealt with the "no such field" error:

https://github.com/crossplane/crossplane-runtime/blob/19d95a69cc03690c4b867ff91d89681fcf872a93/pkg/fieldpath/paved.go#L135-L137

In this case, the lib provides an exported method to check for not found without the need for us to compare against the error's string. This way we also nicely decouple our logic from implementation details on crossplane-runtime.

Fixes #193

I have:

• Read and followed Crossplane's contribution process.
• Added or updated unit tests for my change.

[Peefy]

Thank you. LGTM.

[LCaparelli]

Thank you @Peefy, that was quick!

When could we expect a release of this fix? I was hoping to get it deployed for something I'm working on this week. We can adapt our logic to avoid the bug, or use a fork, but just wondering if it makes sense to wait for the release. Thanks again!

[Peefy]

I've released a new version, and you can test on it. 😊