Is it possible to assign a css id to a row in plugins list table?

Updated answer on how to target with JS: since jQuery is included in wp-admin, you can still target the link with the row’s existing data-slug.

Example of how to target all the links:

jQuery('tr[data-slug="my-plugin-slug"] a'.css('color', 'green');

(You can inspect the elements to work out a way to target just one specific link, if that’s your goal, and of course you can change other properties besides the CSS link color.)

Original answer on how to target the CSS: You could accomplish the same goal by targeting the data-slug or data-plugin attribute:

tr[data-slug="my-plugin-slug"] {
    // your css here
}

The slug is the folder name your plugin is in; and the data-plugin attribute is the folder plus the filename.