Remove PR body generator workflow

The PR body generator workflow has been removed from the repository. This includes the deletion of the workflow configuration file (pr-body-generator.yml) under the GitHub Actions workflows directory and the removal of reference to it in the Elsa.sln file.

.github/workflows/pr-body-generator.yml

@@ -1,19 +0,0 @@
-name: Auto-PR-Body Generator
-
-on:
-  pull_request:
-
-permissions:
-  contents: read
-  repository-projects: write
-  pull-requests: write
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-      - name: AI powered Automatic PR Body Generation
-        uses: jbrocher/auto-pr-body-generator@v0.2.2
-        with:
-          OPENAI_API_KEY: ${{ secrets.OPENAI_API_KEY }}

Elsa.sln

@@ -22,7 +22,6 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "solution", "solution", "{7D
 		NuGet.Config = NuGet.Config
 		packages.props = packages.props
 		.github\workflows\packages.yml = .github\workflows\packages.yml
-		.github\workflows\pr-body-generator.yml = .github\workflows\pr-body-generator.yml
 		README.md = README.md
 		update-migrations.sh = update-migrations.sh
 		frameworks.props = frameworks.props