feat: Use absolute FQDNs to simplify name resolution

[olivergondza]

What type of PR is this?

Uncomment only one /kind line, and delete the rest.
For example, > /kind bug would simply become: /kind bug

/kind bug
/kind cleanup
/kind failing-test
/kind enhancement
/kind documentation
/kind code-refactoring

What does this PR do / why we need it:

Have you updated the necessary documentation?

• [no] Documentation update is required by this PR.
• [no] Documentation has been updated.

Which issue(s) this PR fixes:

Fixes #?

Test acceptance criteria:

• Unit Test
• E2E Test

How to test changes / Special notes to the reviewer:

No functional changes are expected. Just reduced number of DNS queries.

[openshift-ci]

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📝 Walkthrough

Walkthrough

Updated three Go dependency pins and revised OpenShift end-to-end TLS/Redis command assertions, including the Redis service hostname format and multiline expectation formatting.

Changes

Dependency and validation updates

Layer / File(s)	Summary
Dependency version pins go.mod	Updated the Argo CD operator, golang.org/x/mod, and golang.org/x/tools pins.
TLS and Redis command expectations test/openshift/e2e/ginkgo/parallel/*_validate_*test.go	Updated the Redis service hostname expectation and reformatted TLS/Redis command assertions without changing their asserted argument order or unchanged values.

Estimated code review effort: 1 (Trivial) | ~5 minutes

Suggested reviewers: jgwest

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title accurately summarizes the main change: switching to absolute FQDNs to simplify name resolution.
Description check	✅ Passed	The description is clearly related to the change and matches the stated goal of reducing DNS queries with no functional change.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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