migrated speakeasy to v15

.speakeasy/workflow.yaml

@@ -0,0 +1,12 @@
+workflowVersion: 1.0.0
+sources:
+    my-source:
+        inputs:
+            - location: https://raw.githubusercontent.com/LukeHagar/plex-api-spec/main/plex-media-server-spec-dereferenced.yaml
+targets:
+    plexjs:
+        target: typescript
+        source: my-source
+        publish:
+            npm:
+                token: $NPM_TOKEN