remove nested directory for openapi workflows

.github/workflows/openapi-merge.yml

@@ -11,7 +11,7 @@ permissions: {}
 jobs:
   publish-openapi:
     name: OpenAPI - Publish Artifact
-    uses: ./.github/workflows/openapi/__generate.yml
+    uses: ./.github/workflows/openapi-generate.yml
     with:
       ref: ${{ github.sha }}
       repository: ${{ github.repository }}

.github/workflows/openapi-pull-request.yml

@@ -29,7 +29,7 @@ jobs:
 
   head:
     name: Head Artifact
-    uses: ./.github/workflows/openapi/__generate.yml
+    uses: ./.github/workflows/openapi-generate.yml
     with:
       ref: ${{ github.event.pull_request.head.sha }}
       repository: ${{ github.event.pull_request.head.repo.full_name }}
@@ -37,7 +37,7 @@ jobs:
 
   base:
     name: Base Artifact
-    uses: ./.github/workflows/openapi/__generate.yml
+    uses: ./.github/workflows/openapi-generate.yml
     needs:
     - ancestor
     with: