bug: the routes with vars parametes , whos max match is not supported.(route的vars匹配规则不支持最大匹配)

Current Behavior

the routes with vars parametes , whos max match is not supported.

Expected Behavior

i respected match the route of test_route_2.

Error Logs

init.lua:514: http_access_phase(): matched route: {"key":"\/apisix\/routes\/1","createdIndex":152570,"modifiedIndex":218593,"value":{"vars":[["http_parameter1","~~","value[2,3]"]],upstream":{"type":"roundrobin","scheme":"http","hash_on":"vars","parent":{"key":"\/apisix\/routes\/1","createdIndex":152570,"modifiedIndex":218593,"value":"table: 0x7f009f38a618","clean_handlers":"table: 0x7f009f1f3f70","has_domain":true,"update_count":0,"orig_modifiedIndex":218593},"nodes":[{"host":"www.test1.com","weight":1}],"pass_host":"node"},"priority":0,"uri":"\/*","create_time":1673344005,"name":"test_route_2","plugin_config_id":"plugin-config","status":1,"id":"1"},"clean_handlers":{},"has_domain":true,"update_count":0,"orig_modifiedIndex":218593},

Steps to Reproduce

If i add two routes at the same time test_route_1：

curl http: //127.0.0.1:9180/apisix/admin/routes/1 -H 'X-API-KEY: 88888' -X PUT -i -d '
{
  "name": "test_route_1",
  "vars": [
    [
      "http_parameter1",
      "~~",
      "value[2,3]"
    ]
  ],
  "plugin_config_id": "plugin-config",
  "upstream": {
    "pass_host": "node",
    "nodes": {
      "www.test1.com": 1
    },
    "scheme": "http",
    "type": "roundrobin",
    "hash_on": "vars"
  },
  "status": 1,
  "priority": 0,
  "uri": "\/*"
}'

test_route_2：

curl http://127.0.0.1:9180/apisix/admin/routes/2 -H 'X-API-KEY: 88888' -X PUT -i -d '
{
  "name": "test_route_2",
  "vars": [
    [
      "http_parameter1",
      "~~",
      "value[2,3]"
    ],
    [
      "http_parameter2",
      "==",
      "2"
    ]
  ],
  "plugin_config_id": "plugin-config",
  "priority": 0,
  "upstream": {
    "pass_host": "node",
    "nodes": {
      "www.test2.com": 1
    },
    "type": "roundrobin",
    "scheme": "http"
  },
  "uri": "/*",
  "status": 1
}'

then i take a request，like：

curl 127.0.0.1:9080 -H "parameter1: value2" -H "parameter2: 2"

it will always match the route of test_route_1,but i respected match the route of test_route_2.

Environment

• APISIX version (run apisix version):3.0.0
• Operating system (run uname -a):CentOS Linux release 7.9.2009 (Core)
• OpenResty / Nginx version (run openresty -V or nginx -V):openresty/1.21.4.1
• etcd version, if relevant (run curl http://127.0.0.1:9090/v1/server_info):3.0.0
• APISIX Dashboard version, if relevant:
• Plugin runner version, for issues related to plugin runners:
• LuaRocks version, for installation issues (run luarocks --version):