fix(signals): run rxMethod outside of reactive context

[rainerhahnekamp]

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• Tests for the changes have been added (for bug fixes / features)
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PR Type

[x] Bugfix
[ ] Feature
[ ] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no api changes)
[ ] Build related changes
[ ] CI related changes
[ ] Documentation content changes
[ ] Other... Please describe:

What is the current behavior?

It looks like the latest refactoring in rxMethod (fa45d92) causes it now to run inside an effect. Practically, every withMethods
which uses rxMethod cannot call patchState anymore.

I've added two tests. Once you use the new version of rxState from the main branch, you will see that these tests will fail.

Closes #

What is the new behavior?

I played safe and reverted back to the old version. Maybe one can find a better alternative.

Does this PR introduce a breaking change?

[] Yes
[ ] No

Other information

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