Add OpenAPITools/openapi-generator (#52880)

* feat(OpenAPITools/openapi-generator): scaffold OpenAPITools/openapi-generator

* feat(OpenAPITools/openapi-generator): add support for openapi-generator-cli jar releases

Support OpenAPITools/openapi-generator >= v7.21.0, which publishes
openapi-generator-cli-<version>.jar as a GitHub Release asset.
Versions older than v7.21.0 are marked no_asset as they do not
provide a downloadable CLI artifact.

Closes OpenAPITools/openapi-generator#23519

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

---------

Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: ogaclejapan

pkgs/OpenAPITools/openapi-generator/pkg.yaml

@@ -0,0 +1,2 @@
+packages:
+  - name: OpenAPITools/openapi-generator@v7.22.0

pkgs/OpenAPITools/openapi-generator/registry.yaml

@@ -0,0 +1,14 @@
+# yaml-language-server: $schema=https://raw.githubusercontent.com/aquaproj/aqua/main/json-schema/registry.json
+packages:
+  - type: github_release
+    repo_owner: OpenAPITools
+    repo_name: openapi-generator
+    description: OpenAPI Generator allows generation of API client libraries (SDK generation), server stubs, documentation and configuration automatically given an OpenAPI Spec (v2, v3)
+    version_constraint: "false"
+    version_overrides:
+      - version_constraint: semver("< 7.21.0")
+        no_asset: true
+      - version_constraint: "true"
+        asset: openapi-generator-cli-{{trimV .Version}}.jar
+        format: raw
+        complete_windows_ext: false