[tech debt] Plugin depends on unknown plugin com.jetbrains.gateway

[ghuntley]

https://github.com/coder/coder-jetbrains/blob/40949e8e0ccf95cee1dc474cebc19b7073110947/src/main/resources/META-INF/plugin.xml#L11-L12

Currently in our plugin.xml

    <!-- TODO: enable this when https://youtrack.jetbrains.com/issue/GTW-1528/Plugin-depends-on-unknown-plugin-comjetbrainsgateway is fixed-->
    <!-- depends>com.jetbrains.gateway</depends>-->

Related to https://youtrack.jetbrains.com/issue/GTW-1528/Plugin-depends-on-unknown-plugin-comjetbrainsgateway