添加GitHub Actions CI工作流，用于运行单元测试和验证示例代码

Author: CC11001100

.github/workflows/ci.yml

@@ -0,0 +1,57 @@
+name: Go CI
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  test:
+    name: 测试和示例验证
+    runs-on: ubuntu-latest
+    
+    steps:
+    - name: 检出代码
+      uses: actions/checkout@v3
+      
+    - name: 设置 Go 环境
+      uses: actions/setup-go@v4
+      with:
+        go-version: '1.20'
+        cache: true
+        
+    - name: 安装依赖
+      run: go mod download
+      
+    - name: 运行单元测试
+      run: go test -v ./pkg/...
+      
+    - name: 验证基本解析示例
+      run: |
+        go build -o parse-action ./example/01_basic_parsing/parse_action.go
+        ./parse-action pkg/parser/testdata/action.yml
+        
+    - name: 验证工作流解析示例
+      run: |
+        go build -o parse-workflow ./example/02_workflow_parsing/parse_workflow.go
+        ./parse-workflow pkg/parser/testdata/workflow.yml
+        
+    - name: 验证验证工具示例
+      run: |
+        go build -o validate-action ./example/03_validation/validate_action.go
+        ./validate-action pkg/parser/testdata/action.yml
+        
+    - name: 验证可重用工作流分析示例
+      run: |
+        go build -o analyze-reusable ./example/04_reusable_workflow/analyze_reusable_workflow.go
+        ./analyze-reusable pkg/parser/testdata/reusable-workflow.yml
+        
+    - name: 验证实用工具函数示例
+      run: |
+        go build -o utils-example ./example/05_utility_functions/utils_example.go
+        ./utils-example parse_dir pkg/parser/testdata/
+        ./utils-example check_reusable pkg/parser/testdata/reusable-workflow.yml
+        ./utils-example extract_inputs pkg/parser/testdata/reusable-workflow.yml
+        ./utils-example extract_outputs pkg/parser/testdata/reusable-workflow.yml
+        ./utils-example convert_map '{"key1":"value1","key2":"value2"}' 

README.md

@@ -2,7 +2,7 @@
 
 一个用于解析、验证和处理GitHub Action YAML文件的Go库。
 
-[![Go Reference](https://pkg.go.dev/badge/github.com/scagogogo/github-action-parser.svg)](https://pkg.go.dev/github.com/scagogogo/github-action-parser)
+[![Go Reference](https://pkg.go.dev/badge/github.com/scagogogo/github-action-parser.svg)](https://pkg.go.dev/github.com/scagogogo/github-action-parser) [![Go CI](https://github.com/scagogogo/github-action-parser/actions/workflows/ci.yml/badge.svg)](https://github.com/scagogogo/github-action-parser/actions/workflows/ci.yml)
 
 ## 功能特点