Fix inconsistent pattern matching syntax for rc/* branches

[Copilot]

Summary

Code review identified inconsistent bash pattern matching for rc/* branch conditionals. Lines 779 and 951 used glob patterns (== "rc/"*) while line 149 used regex (=~ ^rc/).

Changes:

• Standardized all rc/* branch checks to use regex pattern =~ ^rc/ in bash conditionals
• Updated ARTIFACTORY_STAGE_PREFIX assignment (line 779)
• Updated BUILD_TYPE assignment (line 951)

# Before
elif [[ "${{ github.ref_name }}" == "rc/"* ]]; then

# After
elif [[ "${{ github.ref_name }}" =~ ^rc/ ]]; then

TODO

• Fix pattern matching consistency

Checklist

• Code is properly formatted
• Sign-off message is added to all commits
• Tests (unit, integration, api and/or acceptance) are included
• Screenshots before/after for front-end changes
• Documentation (manuals or wiki) has been updated or is not required
• Backports requested where applicable (ex: critical bugfixes)

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