chore(deps): 升级依赖版本并优化ES客户端连接逻辑

- 升级部分包依赖
- 优化 logger 中的 ES 客户端初始化逻辑，支持多版本自动适配（es7,8,9）
- 移除 eureka.py 中无用的 pass 语句
- 更新 README.md 中的 Docker 镜像标签至 v2.7.6

Author: anjia0532

tools/backup.py

@@ -92,7 +92,7 @@ def check_file(file_path):
                     with open(f"{config_dir}/{syncer['base_name']}", 'w') as f:
                         try:
                             resp = httpx.get(f"{syncer['syncer']}/gateway-api-to-file/{gateway}",
-                                             headers={"SYNCER-API-KEY": f"{syncer['syncer_api_key']}"})
+                                             headers={"SYNCER-API-KEY": f"{syncer['syncer_api_key']}"}, verify=False)
                             status_code = resp.status_code
                             syncer_err_msg = resp.headers.get("syncer-err-msg", None)
                             if status_code == 200:
@@ -107,11 +107,11 @@ def check_file(file_path):
                 print(
                     f"\n\n下载 {syncer['syncer']}/gateway-api-to-file/{gateway} 到 {config_dir}/{syncer['base_name']} ,status_code={status_code}, status_msg={status_msg}")
                 script_file.write(f"""
-def restore_{job.replace("-","_")}_{gateway.replace("-","_")}():
+def restore_{job.replace("-", "_")}_{gateway.replace("-", "_")}():
     check_file("{job}/{gateway}/{syncer['base_name']}")
     with open("{job}/{gateway}/{syncer['base_name']}", 'r', encoding='UTF-8') as f:
         resp = httpx.put("{syncer['syncer']}/restore/{gateway}", content="\\n".join(f.readlines()),
-                         headers={{"SYNCER-API-KEY": "{syncer['syncer_api_key']}"}}).text
+                         headers={{"SYNCER-API-KEY": "{syncer['syncer_api_key']}"}}, verify=False).text
         print(f"还原 {job}/{gateway}/{syncer['base_name']} 到 {syncer['syncer']}/restore/{gateway} , 结果为: {{resp}}")
 
 """)
@@ -132,7 +132,7 @@ def restore_{job.replace("-","_")}_{gateway.replace("-","_")}():
             items = restore_job.split("_")
             script_file.write(f"""
     # 还原 {items[1]} 下的 {items[2]}
-    # {restore_job.replace("-","_")}
+    # {restore_job.replace("-", "_")}
     """)
 
     print("执行 python restore.py 还原网关配置")
@@ -146,7 +146,7 @@ def restore_{job.replace("-","_")}_{gateway.replace("-","_")}():
         syncer_jobs = {
             "apisix1": {
                 "syncer": "http://localhost:9797",
-                "gateways": ["apisix1","apisix2"],
+                "gateways": ["apisix1", "apisix2"],
                 "base_name": "apisix.yaml",
                 "syncer_api_key": "NopU13xRheZng2hqHAwaI0TF5VHNN05G"
             }