Rename serverlessFunction to logicFunction (#17494)

## Summary

Rename "Serverless Function" to "Logic Function" across the codebase for
clearer naming.

### Environment Variable Changes

| Old | New |
|-----|-----|
| `SERVERLESS_TYPE` | `LOGIC_FUNCTION_TYPE` |
| `SERVERLESS_LAMBDA_REGION` | `LOGIC_FUNCTION_LAMBDA_REGION` |
| `SERVERLESS_LAMBDA_ROLE` | `LOGIC_FUNCTION_LAMBDA_ROLE` |
| `SERVERLESS_LAMBDA_SUBHOSTING_URL` |
`LOGIC_FUNCTION_LAMBDA_SUBHOSTING_URL` |
| `SERVERLESS_LAMBDA_ACCESS_KEY_ID` |
`LOGIC_FUNCTION_LAMBDA_ACCESS_KEY_ID` |
| `SERVERLESS_LAMBDA_SECRET_ACCESS_KEY` |
`LOGIC_FUNCTION_LAMBDA_SECRET_ACCESS_KEY` |

### Breaking Changes

- Environment variables must be updated in production deployments
- Database migration renames `serverlessFunction` → `logicFunction`
tables

packages/twenty-server/src/modules/workflow/workflow-builder/utils/__tests__/compute-workflow-version-step-changes.util.spec.ts

@@ -98,9 +98,9 @@ describe('computeWorkflowVersionStepChanges', () => {
         type: WorkflowActionType.CODE,
         settings: {
           input: {
-            serverlessFunctionId: '',
-            serverlessFunctionVersion: '',
-            serverlessFunctionInput: {},
+            logicFunctionId: '',
+            logicFunctionVersion: '',
+            logicFunctionInput: {},
           },
           errorHandlingOptions: {
             continueOnFailure: { value: false },