chore(vpn): replace the jmespath.Search method with the utils.PathSearch method

[profoundwu]

What this PR does / why we need it: replace the jmespath.Search method with the utils.PathSearch method Which issue this PR fixes: (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close that issue when PR gets merged) fixes #xxx

Special notes for your reviewer:

Release note:

1. replace the jmespath.Search method with the utils.PathSearch method

PR Checklist

• [x] Tests added/passed.

make testacc TEST="./huaweicloud/services/acceptance/vpn" TESTARGS="-run TestAccConnection_basic"
==> Checking that code complies with gofmt requirements...
TF_ACC=1 go test ./huaweicloud/services/acceptance/vpn -v -run TestAccConnection_basic -timeout 360m -parallel 4
=== RUN   TestAccConnection_basic
=== PAUSE TestAccConnection_basic
=== CONT  TestAccConnection_basic
--- PASS: TestAccConnection_basic (504.16s)
PASS
ok      github.com/huaweicloud/terraform-provider-huaweicloud/huaweicloud/services/acceptance/vpn       504.225s

 make testacc TEST="./huaweicloud/services/acceptance/vpn" TESTARGS="-run TestAccConnectionHealthCheck_basic"
==> Checking that code complies with gofmt requirements...
TF_ACC=1 go test ./huaweicloud/services/acceptance/vpn -v -run TestAccConnectionHealthCheck_basic -timeout 360m -parallel 4
=== RUN   TestAccConnectionHealthCheck_basic
=== PAUSE TestAccConnectionHealthCheck_basic
=== CONT  TestAccConnectionHealthCheck_basic
--- PASS: TestAccConnectionHealthCheck_basic (418.43s)
PASS
ok      github.com/huaweicloud/terraform-provider-huaweicloud/huaweicloud/services/acceptance/vpn       418.501s

make testacc TEST="./huaweicloud/services/acceptance/vpn" TESTARGS="-run TestAccCustomerGateway_basic"  ==> Checking that code complies with gofmt requirements...
TF_ACC=1 go test ./huaweicloud/services/acceptance/vpn -v -run TestAccCustomerGateway_basic -timeout 360m -parallel 4
=== RUN   TestAccCustomerGateway_basic_withDeprecatedFields
=== PAUSE TestAccCustomerGateway_basic_withDeprecatedFields
=== RUN   TestAccCustomerGateway_basic
=== PAUSE TestAccCustomerGateway_basic
=== CONT  TestAccCustomerGateway_basic_withDeprecatedFields
=== CONT  TestAccCustomerGateway_basic
--- PASS: TestAccCustomerGateway_basic (31.81s)
--- PASS: TestAccCustomerGateway_basic_withDeprecatedFields (32.44s)
PASS
ok      github.com/huaweicloud/terraform-provider-huaweicloud/huaweicloud/services/acceptance/vpn       32.498s

make testacc TEST="./huaweicloud/services/acceptance/vpn" TESTARGS="-run TestAccGateway_basic"
==> Checking that code complies with gofmt requirements...
TF_ACC=1 go test ./huaweicloud/services/acceptance/vpn -v -run TestAccGateway_basic -timeout 360m -parallel 4
=== RUN   TestAccGateway_basic
=== PAUSE TestAccGateway_basic
=== CONT  TestAccGateway_basic
--- PASS: TestAccGateway_basic (478.96s)
PASS
ok      github.com/huaweicloud/terraform-provider-huaweicloud/huaweicloud/services/acceptance/vpn       479.052s

• [ ] Documentation updated.
• [ ] Schema updated.

• [ ] CheckDeleted.

  • a. During query operation (Read Context) aa. Resource not found >>>>>> Paste the screenshot here <<<<<<
  • b. During delete/disassociate/unbind operation (Delete Context) ba. Resource not found >>>>>> Paste the screenshot here <<<<<<

[houpeng80]

/lgtm

[Jason-Zhang9309]

/approve