Add zipSigner dependency for intellijPlatform

[Goooler]

Fixes #44 (comment).

Execution failed for task ':idea-plugin:signPlugin'.
> No Marketplace ZIP Signer executable found.
  Please ensure the `zipSigner()` entry is present in the project dependencies section or `intellijPlatform.signing.cliPath` extension property
  See: https://plugins.jetbrains.com/docs/intellij/tools-intellij-platform-gradle-plugin-extension.html#intellijPlatform-signing

[Goooler]

./gradlew signPlugin fails on my device:

* What went wrong:
Could not determine the dependencies of task ':idea-plugin:buildSearchableOptions'.
> Failed to calculate the value of task ':idea-plugin:buildSearchableOptions' property 'sandboxPluginsDirectory'.
   > Failed to query the value of task ':idea-plugin:prepareSandbox' property 'sandboxPluginsDirectory'.
      > Failed to query the value of task ':idea-plugin:prepareSandbox' property 'sandboxDirectory'.
         > Cannot resolve 'product-info.json' with: '/Users/goooler/.gradle/caches/8.9/transforms/bcd634159af2052b928489697cb6dff8/transformed/ideaIC-2024.1-aarch64'

Can you try this on your device with signing secerts provided? @egorikftp

[Goooler]

Have to remove this cache and run again:

rm -rf /Users/goooler/.gradle/caches/8.9/transforms/bcd634159af2052b928489697cb6dff8/transformed

gw build

Can you verify this works and signs distribution on your device? I have no sign secrets, it can't sign on my device, not sure this fix really work.

tree idea-plugin/build/distributions

idea-plugin/build/distributions
└── valkyrie-0.3.2-SNAPSHOT.zip

1 directory, 1 file

[egorikftp]

@Goooler checked your changes in separate branch, looks fixed

https://github.com/ComposeGears/Valkyrie/actions/runs/10054111747/job/27788084126

[Goooler]

Thanks!