ci: stop installing etcd twice in some workflows, skip protoc

[timvaillancourt]

Description

This PR moves etcd stops installing etcd twice in some workflows. If a workflow uses make tools, it's already installing etcd. The 2 x workflows updated in this PR run make tools 👍

Example:

Run make tools
Sun Feb 8 23:52:57 UTC 2026: Installing dependencies
##local system details...
##platform: Linux target:x86_64 OS: linux-gnu
<<< Installing protoc 21.3 >>>
OK: SHA256 checksum verified for protoc-21.3-linux-x86_64.zip
Archive:  protoc-21.3-linux-x86_64.zip
  inflating: bin/protoc              
  inflating: include/google/protobuf/any.proto  
  inflating: include/google/protobuf/api.proto  
  inflating: include/google/protobuf/compiler/plugin.proto  
  inflating: include/google/protobuf/descriptor.proto  
  inflating: include/google/protobuf/duration.proto  
  inflating: include/google/protobuf/empty.proto  
  inflating: include/google/protobuf/field_mask.proto  
  inflating: include/google/protobuf/source_context.proto  
  inflating: include/google/protobuf/struct.proto  
  inflating: include/google/protobuf/timestamp.proto  
  inflating: include/google/protobuf/type.proto  
  inflating: include/google/protobuf/wrappers.proto  
  inflating: readme.txt              
<<< Installing Zookeeper 3.9.4 >>>
OK: SHA512 checksum verified for /home/ubuntu/_work/vitess/vitess/dist/vt-zookeeper-3.9.4/apache-zookeeper-3.9.4-bin.tar.gz
<<< Installing etcd v3.6.7 >>>
OK: SHA256 checksum verified for etcd-v3.6.7-linux-amd64.tar.gz
<<< Installing Consul 1.11.4 >>>
OK: SHA256 checksum verified for consul_1.11.4_linux_amd64.zip
Archive:  consul_1.11.4_linux_amd64.zip
  inflating: consul                  
bootstrap finished - run 'make build' to compile

As a side effect, the version of etcd is synchronised (we use 3.6.x now)

Related Issue(s)

Checklist

• "Backport to:" labels have been added if this change should be back-ported to release branches
• If this change is to be back-ported to previous releases, a justification is included in the PR description
• Tests were added or are not required
• Did the new or modified tests pass consistently locally and on CI?
• Documentation was added or is not required

Deployment Notes

AI Disclosure

[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.
• Ensure there is a link to an issue (except for internal cleanup and flaky test fixes), new features should have an RFC that documents use cases and test cases.

Tests

• Bug fixes should have at least one unit or end-to-end test, enhancement and new features should have a sufficient number of tests.

Documentation

• Apply the release notes (needs details) label if users need to know about this change.
• New features should be documented.
• There should be some code comments as to why things are implemented the way they are.
• There should be a comment at the top of each new or modified test to explain what the test does.

New flags

• Is this flag really necessary?
• Flag names must be clear and intuitive, use dashes (-), and have a clear help text.

If a workflow is added or modified:

• Each item in Jobs should be named in order to mark it as required.
• If the workflow needs to be marked as required, the maintainer team must be notified.

Backward compatibility

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

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 69.95%. Comparing base (03e5108) to head (235dde9).
⚠️ Report is 3 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #19332   +/-   ##
=======================================
  Coverage   69.95%   69.95%           
=======================================
  Files        1610     1610           
  Lines      216056   216053    -3     
=======================================
- Hits       151141   151139    -2     
+ Misses      64915    64914    -1     

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