[BUG] Require pull requests titles to follow conventional commit structure

[sunib]

Describe the bug
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To Reproduce
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4. See error

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Environment (please complete the following information):

• OS: [e.g. Ubuntu 20.04]
• Kubernetes Version: [e.g. 1.28]
• GitOps Reverser Version: [e.g. v0.1.0]
• Go Version: [e.g. 1.21]

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