Support patching for kustomize

[octonautcal]

Adds support for Kustomize patching in ArgoCD deployments. The PR implements patch discovery and image replacement capabilities for different patch types:

• JSON6902 patch
• Strategic merge patch
• Inline JSON patch

Testing:

Tested local Calamari with an local Octopus Server instance:

The changed commit a2defd6f2a showed that it consistently updated the image tags properly across all scenarios.

[rain-on]

There's a few smells in the KustomizeUpdater which should be easy to fix. But a few general thoughts:

1. The selection of files process is really nice 👍
2. Pulling Update into the KustomizeUpdater is not great - I know its needed for this design to work, as you need currentFile - but it'd be good to avoid.
3. The currentFile property feels a bit dangerous - esp given that it needs to set and unset - means we've got something wrong with lifetime management I suspect.
   3.1 On that topic - we shouldn't need currentFile - yes it can be used as a short-circuit to determine the type of file being updated - but we could infer the file-type from the provided content (and hide it behind a function so we don't need to look at it too often).
4. KustomizeUpdater might need to grow a bit, but going from ~64 --> ~450 is probably too much, hopefully a lot of that could be extracted to a separate class.

[rain-on]

still need to review the tests - but generally like the layout 👍
If you find any of the comments disingenuous, leave them out, we can work through them in person

[rain-on]

this is nice :)
You COULD break this block out to a separate function too but that's just an opinion.

[rain-on]

I LOVE regular expressions :) But no one else does - is there any easy way to do this without the regex?