Upgrade ESLint to version 10

[timvandermeij]

ESLint 10 got released, but contains a number of breaking changes that mostly require changes in the ESLint plugins that we use. The changelog can be found at https://github.com/eslint/eslint/releases/tag/v10.0.0. Some ESLint plugins already got updated to support ESLint 10 via the last few dependency update rounds, but others (such as eslint-plugin-json) don't support it yet, so we need to wait for all plugins to be compatible first.

[Snuffleupagus]

but others (such as eslint-plugin-json) don't support it yet, so we need to wait for all plugins to be compatible first.

Given that that plugin hasn't been updated since 2024, perhaps it'd be an idea to check if there are other alternatives (with a similar rule-set) that are more actively maintained?