feat: support force delete resource

[lingsamuel]

Description

Support to force delete resources with header X-Force-Delete: true.

Fixes #9795

example:

❯ curl http://127.0.0.1:9180/apisix/admin/upstreams/1 -H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PUT -d '{
    "nodes": {
        "127.0.0.1:8080": 1
    },
    "type": "roundrobin"
}'
❯ curl http://127.0.0.1:9180/apisix/admin/routes/1 -H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PUT -d '{
    "uri": "/*",
    "upstream_id": 1
}'
{"value":{"priority":0,"upstream_id":1,"uri":"/*","create_time":1689038794,"id":"1","status":1,"update_time":1689038916},"key":"/apisix/routes/1"}

❯ curl http://127.0.0.1:9180/apisix/admin/upstreams/1 -H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X DELETE
{"error_msg":"can not delete this upstream, route [1] is still using it now"}
❯ curl http://127.0.0.1:9180/apisix/admin/upstreams/1 -H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X DELETE -H 'X-Force-Delete: anyvalue'
{"error_msg":"can not delete this upstream, route [1] is still using it now"}
❯ curl http://127.0.0.1:9180/apisix/admin/upstreams/1 -H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X DELETE -H 'X-Force-Delete: true'
{"deleted":"1","key":"/apisix/upstreams/1"}

Checklist

• I have explained the need for this PR and the problem it solves
• I have explained the changes or the new features added to this PR
• I have added tests corresponding to this change
• I have updated the documentation to reflect this change
• I have verified that this change is backward compatible (If not, please discuss on the APISIX mailing list first)

[kingluo]

URL arg is better. The admin API did not use arguments that much, so it's ok to insist on this simple way.