chore: add lint rule to block toMatchSnapshot usage (#28091)

Issue number: N/A

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## What is the current behavior?
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In addition to migrating away from `toMatchSnapshot` as found in PRs
such as https://github.com/ionic-team/ionic-framework/pull/28083, I
think it would be valuable to have a lint rule to prevent developers
from accidentally using this API in the future.

## What is the new behavior?
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this PR. -->

- Adds a lint rule which errors if `toMatchSnapshot` is being used in
`*.e2e.ts` files.

## Does this introduce a breaking change?

- [ ] Yes
- [x] No

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and migration path for existing applications below. -->


## Other information

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screenshots of how the component looks before and after the change. -->

~Note: This PR's lint step will continue to fail until the remaining
`toHaveScreenshot` migration PRs have been merged. Do note merge this PR
until that has been completed.~ All set!

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Co-authored-by: Brandy Carney <brandyscarney@users.noreply.github.com>