fix: update eslint-config-standard-jsx

[voxpelli]

We need standard/eslint-config-standard-jsx#44 to fix #1548

What is the purpose of this pull request? (put an "X" next to item)

[ ] Documentation update
[x] Bug fix
[ ] New feature
[ ] Other, please explain:

What changes did you make? (Give an overview)

Ensuring the ecmaVersion set in eslint-config-standard-jsx reflects the one set in eslint-config-standard

Which issue (if any) does this pull request address?

Fixes #1548

Is there anything you'd like reviewers to focus on?

Check that this actually fixes the problem.

[theoludwig]

Maybe we can add a test case like we did inside eslint-config-standard to avoid regression.

[voxpelli]

Maybe we can add a test case like we did inside eslint-config-standard to avoid regression.

Good idea, added the very same, but adapted for the standard api. + I tested that it failed before the update of the jsx module and passed after the update 👍