Clarify provider release verification steps

[o-nikolas]

While running through the steps today I noticed a few small things to fix:

• Clarify wording provider release SVN check
• Drop duplicate cd in verification steps

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[github-actions]

Backport successfully created: v3-3-test

Note: As of Merging PRs targeted for Airflow 3.X
the committer who merges the PR is responsible for backporting the PRs that are bug fixes (generally speaking) to the maintenance branches.

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Status	Branch	Result
✅	v3-3-test