Persist jpkl to the workspace for releases (#314)

This is something that was published to Maven but not as a GitHub release.
 Persist it so that it can go out with a release.

.circleci/config.yml

@@ -661,6 +661,10 @@ jobs:
         at: '.'
     - run:
         command: ./gradlew --info --stacktrace publishToSonatype
+    - persist_to_workspace:
+        root: '.'
+        paths:
+        - pkl-cli/build/executable/
     - run:
         command: |-
           mkdir ~/test-results/
@@ -680,6 +684,10 @@ jobs:
         at: '.'
     - run:
         command: ./gradlew --info --stacktrace -DreleaseBuild=true publishToSonatype closeAndReleaseSonatypeStagingRepository
+    - persist_to_workspace:
+        root: '.'
+        paths:
+        - pkl-cli/build/executable/
     - run:
         command: |-
           mkdir ~/test-results/

.circleci/jobs/DeployJob.pkl

@@ -32,4 +32,11 @@ steps {
   new Config.RunStep {
     command = "./gradlew \(self.gradleArgs) \(module.command)"
   }
+  // add jpkl to workspace so it gets published as a GitHub release
+  new Config.PersistToWorkspaceStep {
+    root = "."
+    paths {
+      "pkl-cli/build/executable/"
+    }
+  }
 }