[CTS]: opentelekomcloud_cts_tracker_v3 resource for SWISSCLOUD

[artem-lifshits]

Summary of the Pull Request

Release of a new resource for system cts tracker management in SWISSCLOUD.

PR Checklist

• Refers to: Error when creating CTS tracker #2159
• Tests added/passed.
• Documentation updated.
• Schema updated.
• Release notes added.

Acceptance Steps Performed

=== RUN   TestAccCTSTrackerV3_basic
--- PASS: TestAccCTSTrackerV3_basic (45.79s)
PASS

Process finished with the exit code 0

=== RUN   TestAccCTSTrackerV3_importBasic
--- PASS: TestAccCTSTrackerV3_importBasic (29.63s)
PASS

Process finished with the exit code 0

[otc-zuul]

Build succeeded.
https://zuul.otc-service.com/t/eco/buildset/8b030e0c060343d888d1917640b53f13

✔️ build-otc-releasenotes SUCCESS in 3m 24s
✔️ otc-golangci-lint SUCCESS in 2m 58s
✔️ golang-make-test SUCCESS in 3m 31s
✔️ golang-make-vet SUCCESS in 2m 40s
✔️ tflint SUCCESS in 2m 00s
✔️ goreleaser-build SUCCESS in 8m 29s