fix: add skipFormModel=false to prevent missing model compilation errors

The Java codegen's default skipFormModel=true skips generating form
models (e.g. SendInboxMessageRequest1 for multipart/form-data) but
the API class still imports them, causing compilation failures.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: mikipalet

.github/workflows/generate.yml

@@ -40,6 +40,7 @@ jobs:
             -g java \
             -o . \
             --skip-validate-spec \
+            --global-property skipFormModel=false \
             --additional-properties=artifactId=late-sdk,groupId=dev.getlate,apiPackage=dev.getlate.api,modelPackage=dev.getlate.model,invokerPackage=dev.getlate,library=native \
             --git-user-id=getlate-dev \
             --git-repo-id=late-java