feat: make grpc message size configurable

[andibeuge]

📝 Description

In order to handle bigger payloads (e.g. for large postgres db listings) it is necessary to increase the grpc message size when needed.

In current state it is not possible to list larger databases due to the current hard coded limit:

🚀 Type of Change

• 🐛 Bug fix (non-breaking change which fixes an issue)
• ✨ New feature (non-breaking change which adds functionality)
• 💥 Breaking change (fix or feature that would cause existing functionality to not work as expected)
• 📚 Documentation update
• 🎨 Style/UI update
• ♻️ Code refactor
• ⚡ Performance improvement
• ✅ Test update
• 🔧 Build configuration change
• 🧹 Chore

📋 Changes Made

• Added the option to set the message size in bytes for grpc by environment variable

✅ Checklist

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• My changes generate no new warnings
• New and existing unit tests pass locally with my changes
• I have checked my code and corrected any misspellings

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[andibeuge]

I have read the CLA Document and I hereby sign the CLA

[andibeuge]

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[andibeuge]

I have read the CLA Document and I hereby sign the CLA