[cli] [topo] Migrate topo flags to pflags

[rsajwani]

Signed-off-by: Rameez Sajwani rameezwazirali@hotmail.com

Description

Updates topo related flag references specified in #10857

endpoints using these flags

$ go list -f '{{ .ImportPath }}| {{ join .Deps " " }} ' ./go/cmd/... | awk -F"|" '$2 ~ "vitess.io/vitess/go/vt/topo" {print $1}'
vitess.io/vitess/go/cmd/mysqlctl
vitess.io/vitess/go/cmd/mysqlctld
vitess.io/vitess/go/cmd/rulesctl
vitess.io/vitess/go/cmd/rulesctl/cmd
vitess.io/vitess/go/cmd/rulesctl/common
vitess.io/vitess/go/cmd/topo2topo
vitess.io/vitess/go/cmd/vtadmin
vitess.io/vitess/go/cmd/vtbackup
vitess.io/vitess/go/cmd/vtbench
vitess.io/vitess/go/cmd/vtcombo
vitess.io/vitess/go/cmd/vtctl
vitess.io/vitess/go/cmd/vtctld
vitess.io/vitess/go/cmd/vtctldclient
vitess.io/vitess/go/cmd/vtctldclient/cli
vitess.io/vitess/go/cmd/vtctldclient/command
vitess.io/vitess/go/cmd/vtctldclient/docgen
vitess.io/vitess/go/cmd/vtexplain
vitess.io/vitess/go/cmd/vtgate
vitess.io/vitess/go/cmd/vtgateclienttest
vitess.io/vitess/go/cmd/vtgr
vitess.io/vitess/go/cmd/vtorc
vitess.io/vitess/go/cmd/vttablet
vitess.io/vitess/go/cmd/vttestserver
vitess.io/vitess/go/cmd/zk

Related Issue(s)

closes #10857

Checklist

• "Backport me!" label has been added if this change should be backported
• Tests were added or are not required
• Documentation was added or is not required

Deployment Notes

[vitess-bot]

Review Checklist

Hello reviewers! 👋 Please follow this checklist when reviewing this Pull Request.

General

• Ensure that the Pull Request has a descriptive title.
• If this is a change that users need to know about, please apply the release notes (needs details) label so that merging is blocked unless the summary release notes document is included.

If a new flag is being introduced:

• Is it really necessary to add this flag?
• Flag names should be clear and intuitive (as far as possible)
• Help text should be descriptive.
• Flag names should use dashes (-) as word separators rather than underscores (_).

If a workflow is added or modified:

• Each item in Jobs should be named in order to mark it as required.
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Bug fixes

• There should be at least one unit or end-to-end test.
• The Pull Request description should include a link to an issue that describes the bug.

Non-trivial changes

• There should be some code comments as to why things are implemented the way they are.

New/Existing features

• Should be documented, either by modifying the existing documentation or creating new documentation.
• New features should have a link to a feature request issue or an RFC that documents the use cases, corner cases and test cases.

Backward compatibility

• Protobuf changes should be wire-compatible.
• Changes to _vt tables and RPCs need to be backward compatible.
• vtctl command output order should be stable and awk-able.
• RPC changes should be compatible with vitess-operator
• If a flag is removed, then it should also be removed from VTop, if used there.