fix(ecs/password): use v1 api to reset the password

[Jason-Zhang9309]

What this PR does / why we need it:

the v2 api for resetting password is not available any more, so use v1 api to reset the password

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:

use v1 api to reset the password

PR Checklist

• [x] Tests added/passed.
• [ ] Documentation updated.
• [ ] Schema updated.

Acceptance Steps Performed

make testacc TEST='./huaweicloud' TESTARGS='-run TestAccComputeInstance_basic'
==> Checking that code complies with gofmt requirements...
TF_ACC=1 go test ./huaweicloud -v -run TestAccComputeInstance_basic -timeout 360m -parallel 4
=== RUN   TestAccComputeInstance_basic
=== PAUSE TestAccComputeInstance_basic
=== CONT  TestAccComputeInstance_basic
--- PASS: TestAccComputeInstance_basic (194.34s)
PASS
ok      github.com/huaweicloud/terraform-provider-huaweicloud/huaweicloud       194.525s