Add automated build and trusted nuget deployment pipelines

Author: HappyEntity

.github/workflows/cd.yml

@@ -0,0 +1,52 @@
+name: CD (Publish to NuGet & GitHub Release)
+
+on:
+    push:
+        tags:
+            - 'v[0-9].*'
+
+jobs:
+    deploy:
+        runs-on: ubuntu-latest
+        permissions:
+            contents: write
+            id-token: write
+
+        steps:
+            - name: Checkout code
+              uses: actions/checkout@v4
+              with:
+                  fetch-depth: 0
+
+            - name: Setup .NET SDKs
+              uses: actions/setup-dotnet@v4
+              with:
+                  dotnet-version: |
+                      8.0.x
+                      9.0.x
+                      10.0.x
+
+            - name: Extract Version from Tag
+              id: get_version
+              run: echo "VERSION=${GITHUB_REF_NAME#v}" >> $GITHUB_ENV
+
+            - name: Restore dependencies
+              run: dotnet restore
+
+            - name: Pack NuGet Package
+              run: dotnet pack src/Refit.Composite/Refit.Composite.csproj --configuration Release /p:PackageVersion=${{ env.VERSION }} --output ./dist
+
+            - name: NuGet login (OIDC)
+              uses: NuGet/login@v1
+              id: nuget_login
+
+            - name: Push to NuGet.org
+              run: dotnet nuget push ./dist/*.nupkg --api-key ${{ steps.nuget_login.outputs.NUGET_API_KEY }} --source https://nuget.org --skip-duplicate
+
+            - name: Create GitHub Release
+              uses: softprops/action-gh-release@v2
+              with:
+                  tag_name: ${{ github.ref_name }}
+                  name: Release ${{ github.ref_name }}
+                  generate_release_notes: true
+                  files: ./dist/*.nupkg

.github/workflows/ci.yml

@@ -0,0 +1,32 @@
+name: CI (Build & Test)
+
+on:
+    push:
+        branches: [ main ]
+    pull_request:
+        branches: [ main ]
+
+jobs:
+    build-and-test:
+        runs-on: ubuntu-latest
+
+        steps:
+            - name: Checkout code
+              uses: actions/checkout@v4
+
+            - name: Setup .NET SDKs
+              uses: actions/setup-dotnet@v4
+              with:
+                  dotnet-version: |
+                      8.0.x
+                      9.0.x
+                      10.0.x
+
+            - name: Restore dependencies
+              run: dotnet restore
+
+            - name: Build Solution
+              run: dotnet build --configuration Release --no-restore
+
+            - name: Run Tests
+              run: dotnet test --configuration Release --no-build --verbosity normal