fix: update the eslint version in root and remove unnecessary suppress annotations

[maribethb]

1. Lerna does not automatically update the version of @blockly/eslint-config in the root level because I guess the root level isn't managed by lerna. This is the only plugin affected by this. This is the cause of those "visibility is not a type" lint warnings, which are fixed in the updated version of eslint-plugin-jsdoc which is required in the newest version of eslint-config but wasn't being pulled in. So I updated it.
2. Removed the 2 @suppress annotations. These are for suppressing errors in the Closure compiler which we don't use in samples. They were probably left over from when we pulled stuff out of core. The reason this is related to the first change is because it's the suppress annotations that were throwing the warning that I was trying to deal with in 1
3. As part of trying to get the version to update I deleted all the package locks and recreated them so idk here they are, enjoy. I think the version numbers themselves got updated after the recent release
4. As of this moment there are no lint errors or warnings in samples. Savor the feeling!