fix(release.md): fix release process workflows explanation

[ekoops]

What type of PR is this?

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/kind bug

/kind cleanup

/kind design

/kind documentation

/kind failing-test

/kind feature

If this PR will release a new chart version please make sure to also uncomment the following line:

/kind chart-release

Any specific area of the project related to this PR?

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/area falco-chart

/area falco-exporter-chart

/area falcosidekick-chart

/area event-generator-chart

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What this PR does / why we need it:

This PR fixes the description of the workflows in the release process process documentation.

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

Checklist

• Chart Version bumped
• Variables are documented in the README.md
• CHANGELOG.md updated

[poiana]

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[poiana]

Welcome @ekoops! It looks like this is your first PR to falcosecurity/charts 🎉